OsTech electro-optical-instruments Laser- und ... - Hy-Line

OsTech 

electro-optical-instruments 

Laser- und Peltiertreiber 

Zusammenstellung der Standard-Baureihen 

Deutschland: 

Inselkammerstraße 10 

D-82008 Unterhaching 

Tel: 089 614 503-10 

E-Mail: power@hy-line.de 

URL: www.hy-line.de 

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INHALT Seite 

Baureihe 01 - Übersicht 2 

Baureihe 11 - Übersicht 4 

Lasertreiber LS01 - OEM Bauform O1 6 

Peltiertreiber PS01 - OEM Bauform O1 7 

Kombi Laser- und Peltiertreiber DS01 - OEM Bauform O1 8 

Kombi Laser- und Peltiertreiber DS01 - Tischgerät Bauform T1 9 

Lasertreiber LS01 - Tischgerät Bauform T1 10 

Peltiertreiber PS01 - Tischgerät Bauform T1 11 




Lasertreiber LS11 - Tischgerät Bauform T3 15 

Kombi Laser- und Peltiertreiber DS11 - Tischgerät Bauform T3 16 

Peltiertreiber PS11 - Tischgerät Bauform T3 17 




Bedienungsanleitung (für alle Geräte einheitlich) 21 

Schweiz: 

Gründenstraße 82 

CH-8247 Flurlingen 

Tel.: 052 647 42 00 

E-Mail: power@hy-line.ch 

URL: www.hy-line.ch

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Der Laserdiodentreiber und Temperaturcontroller DS01 

(Laser-Diode-Source)ermöglicht den sicheren und hochpräzisen 

Betrieb von cw- und gepulsten Diodenlasern. 

Der Treiber verfügt über eine stromstabilisierte 

Ansteuerung der Laserdiode. Durch einen Photodiodeneingang 

kann im cw-Modus eine Regelung der optischen Leistung 

erfolgen. 

Der DS01 kann vollständig über das eingebaute Terminal 

oder über die serielle Schnittstelle gesteuert werden. Sie 

können Strom, Temperatur, Spannung und deren Grenzwerte frei 

wählen. Je nach maximal einstellbarer Laserspannung können 

mehrere Laser in Reihe betrieben werden. 

Der Pulsbetrieb ist über einen eingebauten Oszillator 

oder eine externe Quelle möglich. Es können verschiedene 

Modi in vaiablem Tastverhältnis generiert werden, wie: 

kontinuierlicher Pulsbetrieb, zuschaltbarer kontinuierlicher 

Pulsbetrieb, Einzelpulse, Pulsfolgen etc.. 

In das Gerät können ein oder zwei Peltiercontroller mit 

PID-Regler integriert werden. Standardsensor ist ein 

NTC10kOhm andere NTC, PT100 oder Siliziumsensoren können per 

Software konfiguriert werden. Die kalibrierten Geräte 

unterliegen einem 24h Dauertest. 

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Die Laserdiodentreiber und Temperaturcontroller der 

Baureihe 11 ermöglicht den sicheren und hochpräzisen Betrieb 

von cw- und gepulsten Diodenlasern. 

Der Treiber verfügt über eine stromstabilisierte 

Ansteuerung der Laserdiode. Durch einen Photodiodeneingang 

kann im cw-Modus eine Regelung der optischen Leistung 

erfolgen. 

Der DS01 kann vollständig über das eingebaute Terminal 

oder über die serielle Schnittstelle gesteuert werden. Sie 

können Strom, Temperatur, Spannung und deren Grenzwerte frei 

wählen. Je nach maximal einstellbarer Laserspannung können 

mehrere Laser in Reihe betrieben werden. 

Der Pulsbetrieb ist über einen eingebauten Oszillator 

oder eine externe Quelle möglich. Es können verschiedene 

Modi in vaiablem Tastverhältnis generiert werden, wie: 

kontinuierlicher Pulsbetrieb, zuschaltbarer kontinuierlicher 

Pulsbetrieb, Einzelpulse, Pulsfolgen etc.. 

In das Gerät können ein oder zwei Peltiercontroller mit 

PID-Regler integriert werden. Standardsensor ist ein 

NTC10kOhm andere NTC, PT100 oder Siliziumsensoren können per 

Software konfiguriert werden. Die kalibrierten Geräte 

unterliegen einem 24h Dauertest. 

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The Diode-Laser-Source 'DioSrc01' Laser Driver and 

Temperature-Controller is a high precision, safe and 

cost effective solution for driving Diode Lasers in CW 

and pulse modes. The Driver supplies a constant 

current to the laser. But if you have any photodiode 

signal you can also control for constant power (in CW- 

Mode). With its compliance voltage of 6V for example, 

two laser diodes can be operated simultaneously, with 

12V compliance up to 5. 

The Driver can be completely controlled by the RS232 

serial interface. You can freely set Current ,Voltage 

and Temperature Limits. The Device contains an On- 

Board Oscillator which you can freely configure for 

pulsing the Laser or you may configure the Device to 

modulate the Laser via the Digital Inputs. 

The Temperature-Controllers realise a PID-Control- 

Loop. The temperature sensor can be of NTC (standard), 

silicon or other types and will be adjusted by 

software. 

Every device has passed our 24h Full Power Burn in and 

several safety tests for proving static discharge and 

transient protection. 

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Thank you for your interest in our laser-diode and temperature controllers. Our 

devices are high-quality advanced products and we give our best that you will enjoy 

the work with it. 

Please read this operation manual carefully before switching on the DioSrc01 device 

and pay attention to the safety instructions given here. In order to obtain optimum 

performance from your DioSrc-Module follow the installation and operating 

instructions. 

Please note that unauthorized opening of the DioSrc01 cancels the two year warranty. 

If you should have any questions or problems, please contact our service staff. 

In most cases our lasers are driven by an advanced microprocessor-controlled power 

supply with many safety features for reliable operation of the laser diode. The 

serial interface of the power supply allows external computer-controlled operation 

for elaborate experiments. 

New Features Rev:04 

� Now the external Fan Voltage can be controlled from 1.2-24V at a 

maximum currents of 300mA, see 'GF'- 'GFD'-commands 

� The internal Fan is now permanetly controlled 

� We implemented for RS232 communication 'between' the standard Echo Mode and the 

binary Mode a reduced Echo Mode 

� The TEC Voltage can be checked by 'LTVA'-command 

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DC Input Voltage 

/max. Current/Power 

/Fuse Value 

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1)-5) Fuse 5x20mm 

Quick-Acting 

6) Autom.-Fuse 

1) 24V/ 3A/ 65W/3.15A 

2) 24V/ 6A/130W/6.30A 

3) 24V/10A/240W/10A 

4) 24V/12A/280W/12A 

5) 24V/16A/380W/16A 

6) 24V/20A/480W/20A 

Ambient Temperature Range 0..40°C 

Remote Control PC serial interface RS232 

Housing Tabletop 

Size (HxWxD) 85x105x200(mm) (210 with connectors) 

OEM1 < 160W 


OEM2 > 160W 


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Laser Diode Current Range 

Resolution 

Accuracy 

Laser Current Limit Range 

Resolution 

Accuracy 

0-1.5A,0-2.5A,0-5A,0-8A,0-12A 

0-16A,0-24A,0-32A,0-40A,0-50A(0-60A) 

Imax/4000 

32A max. 3V) 

Current Noise Imax1.5A/60.000-Imax50A/6.000 

(lowest noise versions on request) 

Internal Pulse Mode Range Pulse Width 

Range Pulse Periode 

Absolute Accuracy 

Acuracy Puls to Puls 

100µs-2^32µs(71 min) 

200µs-2^32µs(71 min) 

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� preparations: Make shure that the power supply unit is disconnected from main. Use 

an approved personal grounding bracelet for ESD protection of the laser during the 

following step. 

� connect your laser to the driver at the laser&peltier-connector at the rear side 

of the driver unit. Remove the shortage clip from the laser. 

(during off-state the laser output of the driver unit is internaly shortened) 

� connect power: Connect the power supply unit to the driver (24V DC). Connect the 

power supply unit to main. 

� convince that the interlock-connector is closed 

� You have to adjust the Compliance Voltage (command 'LVCxx.xx') to an value equal 

or about 0.5V over the estimated Voltage Drop over Laser; 

e.g. how to change Compliance Voltage 

1. after switching on the driver, and connectig the device to an PC by a serial 

cable 

2. start any terminal program on you PC, which is connected to the 

appropriate serial interface (Parameters: 9600-8N1) 

3. transfer by the terminal for example the following signs: 'LVC2.37', and 

complete the input by pressing the key; 

4. now the device confirms the receiption by sending the message: 

'Laser Voltage Compliance: 2.37V' 

� After turning on the device CW-Mode is entered as default. 

To drive the Laser do the following steps: 

1. adjust the wished laser current target 'LCTxxxx' (the xxxx's arre the 

current value in mA; 

2. be shure that the laser current Limit in the 'LCL' is suitable. 

3. and with entering 'LR' you can run the current. The 'LS'-command stops 

the laser current. 

4. the 'LCA' command shows you the 'actual' current value. 

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� Attention! in the Pulse-Modes the measured currents and voltages, show the meanvalue 

not the peak-value. These measured values may differ to the ajusted which 

depends on low speed of the AD-converter. Don't care about this, the real values 

lay in the limits as described above. 

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� The Internal Pulse-Mode will run by entering the 'LMDIR'-command. 

Now you have to enter the pulse-width (duration) and pulse-period in µs. 

Keep care for the right proportions of these values, as: 1. pulse-width is in the 

range of 100µs..4*10^9µs, enter the 'LMWxxxx'-command and 2. pulse-periode is in 

the range of LMW + 100µs..4*10^9µs and always at least 100µs larger than the 

pulse-width. If the laser-current and compliance voltage is entered as in CW-Mode 

you can run the Laser like in CW-Mode by 'LR' and 'LS' commands. This Mode 

supports an Gate-Option, i.e. you may gate the internaly generated pulse wave by 

the modulation input. The Gate Mode will be initated by the 'LGR' and stopped by 

the 'LGS' commands. Additionally therefore the 'LMDXN[R|S]' command can be used 

(see at External Pulse-Mode). 

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� The Single or n Pulse-Mode will run by first initiating the Internal Pulse-Mode as 

descripted above. Then entering the 'LMDICn'-command followed by the wished number 

of pulses. When entering the 'LR'-command the number of pulses will be generated; 

after been done the driver enters automatically the Off-State ('LS' need not to be 

entered). This Pulse-Mode can be used to generate an sequence of bursts by 

defining with 'LMDIOn'-command the length of the pause (def. in No. of pulses) 

between the bursts. The result is an continuous burst sequence. Additionally you 

can use here the Gate- and Negation- Option as in the Internal Pulse-Mode. Before 

returning to the continuouse Puls-Mode you must set the number of pulses to 0 with 

'LMDIC0'. 

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� The External Pulse-Mode will run by entering the 'LMDX'-command. If this tag is 

activated and the laser-current and compliance voltage is entered as in CW-Mode 

you can run the laser by the 'LR'-command. The laser then is activated with an TTL 

high-level at the DMOD input and vv. . With the 'LMDXN[R|S]'-commands you may 

negate these logic, that means: the laser will be activated by TTL low-level. 

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� The Analog Modulation-Mode will run by entering the 'LMAX'-command. If this tag is 

set and the laser is activated by the 'LR'-command, the compliance Voltage must be 

set before, the laser current can be controlled by the voltage at the AMOD input 

with 0.5V/A. 

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(in cw-mode!) 

The Power Control Loop consits of two independent parts: 

1. The photo current control loop, which works independent and 

2. The Laser Power top, which in fact does nothing than a translation from 

a power value into a value for the photo current 

To initiate the Power Control you must first prepare the laser for proper operation 

in cw-mode. Don't forget to adjust the Laser Current Limit. 

When the laser runs you must connect the photosensor between the PDC-(Cathode) and 

the GND(Anode) pins at the laser connector. After this you should test whether the 

sensor works well. For this run the laser and check with the 'LPCA'-command (Laser 

Photo Current Actual) it's operation. The maximum photo current is (default) 700µA, 

but can be increased on request. 

When all this is working start the 'LPCCC'-command (LaserPhoto Current Calibration), 

the driver searches about 1 minute for the threshold current, the slope and internal 

offsets. After this the control loop is working already with photo current values. 

Give in your target photocurrent with 'LPCT'-command. Initialise the photocurrent 

control mode by 'LPCCR'-command (Laser Photo Current Controll Run). Now you have 

merely to run and stop the laser by 'LR' and 'LS'. 

In the moment you start the laser the current is setup with a target photo current 

calculated by the found coefficients, so that (power) is initiated at once. After 

this the driver begins continuosly to track and guide the photo current. 

The second step is to adjust the power coefficients, so that you can use power 

values in Watt. For this: 

1. Adjust a 'LPT'-value (Laser Power Target), it should have a typical or a maximum 

..value 

2. Now run the laser in normal cw-mode and set up the current until the laser 

emitts exact the target laser power. An external power-meter is necessary for 

this. Now execute the 'LPF'-command to fix the actual photocurrent value to 

this laser power. 

Now you can get the laser power by 'LPA'-command, set the power target by 

'LPT'-command, run the power control mode by 'LPCCR'-command. Start and stop the 

laser by 

'LR' and 'LS'. 

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The Temperature-Sensor at the Laser&Peltier Connector has 3 Terminals: 'GND', 'INP' 

and 'SUP'. The followign schematic shows the internal part on the right side and a 

typical NTC-Thermistor Connect on the left. You see the temperature is calculated by 

measuring the voltage over simple divider network. 

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After 24Bit AD-Conversion the Temperature is 

calculated by an 3rd-Order Polynom. The default 

coefficients of this Polynom are set to an NTC 

with 10kΩ@25°C, which is a wide spread standard. 

You may individually set these coefficients to 

adjust a different sensor at the device by the 

'LTSC[0..3]ffff' command. 

The Temperature depends on the measured voltage and is calculated by a 3th-order 

polynom as follows: T(v)=LTSC0+LTSC1*v+LTSC2*v2+LTSC3*v3 (v-Voltage) 

The default set of polynomial coefficients for an 10k� NTC are: 

LTCS[0,..,3]={ 127.86, -58.380, 13.7644, -1.6117} these are appropriate for 

a NTC-Sensor with nominal 10k� (@25°C) and � = 3988 

The settings for an PT100 sensor can be calculated from the following Formula of 

its Resistance as: R0 =100R (@0°C), R(t)=R0 *(1+A*t-B*t2), (with t-Temperatur in °C). 

For the B-value is commonly neglected you can calculate with R(t)=R0 *(1+A*t) and 

over the divider network the measured voltage is U(t)=Uref*1/(1+4700/R(t)) wich 

leads to 

LTCS[0,..,3]={ -1.02303/A, 9.8478/A, 0, 0} 

with Tk = A = 3850 ppm/K this would lead to the following set... 

LTCS[0,..,3]={ -266.5, 2557.9, 0, 0} 

And the settings for the AD590 (1µA/K) sensor for example would lead with 

U(t)=Uref-(4700*(t+273.15)*10-6) (with t-Temperatur in °C) to 

LTCS[0,..,3]={ -790.86, -212.77, 0, 0} 

For tolerances of real sensors you may need to calibrate the setup point of your 

sensor by adding the difference between the real temp. and the shown temp. to the 

absolut part LTCS[0]=LTCS[0]+� with ��Treal-Tshown. If you need assistance in 

connecting your sensors or you want to assemble any other Sensor to the driver we be 

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pleased to assist you in finding the appropriate coefficients. 

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(only for DSrc01-Versions with TEC-support) 

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The Temperature Controller has an PID-Structure with the common Formulas: 

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kp - proportional Gain (corresponds to PTCK command) 

Tn - integral Time 

Tv - derivative Time 

For any circuit the three variable parameters has to be found. You may enter these 

coefficients directly by the 'LTCCK'-, 'LTCCN'- or 'LTCCV' commands. 

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Our Driver supports a pilot-laser function. Therefore is at the Laser & Peltier 

connector one Pin reserved. In the 'On state' lays there a Voltage between 4.0 and 

5.0V and a maximum output current of 150mA. In the 'Off state' the output is near 0V 

level. With the 'PPxx'-Command you may modulate these pin continously between On and 

Off state with an base frequency of 62Hz. The modulation parameter (xx) can get 

values between 0..16. 

6.1) Parameter description of pilot-laser modulation 

xx=0 pilot-laser Off 

xx=1 duty cycle 6.25% - On duration 16ms 

xx=2 duty cycle 12.5% - On duration 32ms 

... 

xx=16 pilot-laser On 

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No Code Parameter min max def U Type Description 

1 LC Laser-Current Commands 

2 LCL (ff.ff):ret 0 Imax+5% Imax+5% mA float Current Limit 

3 LCT (ff.ff):ret 0 Imax 0.00 mA float Current Target 

4 LCA :ret mA float Current Actual 

5 L (R | S):ret bool Laser (Run | Stop) 

6 xTA (xx.xx):ret -20.00 60.00 20.00 °C float Temp. Actual 

7 LTM (xx.xx):ret -20.00 60.00 35.00 °C float Laser Temp. Maximum 

8 LG (R | S):ret 0 bool Gate Option 

9 LP Laser-Photo Current and -Power Commands 

10 LPCA :ret 0.00 20.00 0.00 µA float Laser Photo Current Actual 

11 LPCT (xx.xx):ret 0.00 20.00 0.00 µA float Laser Photo Current Target 

12 LPCC (R | S):ret S Bool Laser Photo Current Control 

13 LPA :ret 0.00 W float Laser Power Actual 

14 LPT (xx.xx):ret 0.00 W float Laser Power Target 

15 LPF :ret bool Laser Power Fix Procedurre 

16 LPCCC :ret bool Laser Ph.Cur.Ctrl.Calibrate 

17 LV Laser-Voltage Commands 

18 LVA :ret 0 6.00 V float Actual Laser Voltage 

19 LVC (ff.ff):ret 1.2 6.00 V float Compliance Voltage 

20 LM Laser-Modulation Commands 

21 LMW (wwwww):ret 100 2^32 1000 µs word Mod. Width 

22 LMP (wwwww):ret LMW+100 2^32 2000 µs word Mod. Period (internal mod.) 

23 LMDI (R | S) 0 bool Mod. Digital Internal 

24 LMDX (R | S) 0 bool Mod. Digital External 

25 LMDIC Wwwww:ret 0 64000 0 word Puls Number in Sequence 

26 LMDIO Wwwww:ret 0 64000 0 word Suppressed No. of Pulses 

27 LMDXN (R | S) S bool Negates Dig.Mod.Input if Set 

28 LMAX (R | S) 0 bool Mod. Analog External 

29 x Peltier Commands (x=L-Laser | x=C-Crystal) only for peltier version 

30 xTT (xx.xx):ret -20.00 60.00 20.00 °C float Temp. target 

31 xTA (xx.xx):ret -20.00 60.00 20.00 °C float Temp. Actual 

32 xTLU (xx.xx):ret -20.00 60.00 40.00 °C float Upper Temp. limit 

33 xTLL (xx.xx):ret -20.00 60.00 0.00 °C float Lower Temp. Limit 

34 xTSC (fffff):ret float Temp.-Sensor Coefficients 

35 xTCCK (fffff):ret 2.00 float Temp.-Controller k-Faktor 

36 xTCCN (fffff):ret 60.0 s float Temp.-Contrl. integral Time 

37 xTCCV (fffff):ret 1.00 s Temp.-Contrl. derivative T. 

38 xTC (R | S) def bool Temp.-Controller (Run|Stop) 

39 xTCA (ffff):ret -Ipmax IPmax 0 float LT Current Actual 

40 xTCL (ffff):ret -IPmax IPmax IPmax mA float LT Current Limit 

41 xTVA :ret V float LT Voltage Actual 

42 G General Commands 

43 GD :ret proc Set Defaults 

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No Code Parameter min max def U Type Description 

44 GS :ret word Get Status (1=TRUE) 

0x0001-Interlock_OK 

0x0004-DriverSupply_OK 

0x0008-DriverTemp._OK 

0x0010-LTLU_NotOK 

0x0020-LTLL_NotOK 

0x0040-CTLU_NotOK 

0x0080-CTLL_NotOK 

0x0400-LTSEN_OK 

0x0800-CTSEN_OK 

0x2000-LTM_NotOK 

0x4000-LC_ON 

0x8000-LC_Error 

45 GM :ret word Get Modus (1=TRUE) 

0x0001-LC_ON 

0x0008-BINARY_ECHO_MODE_ON 

0x0020-LMDI_ON 

0x0040-LMDX_ON 

0x0080-LMAX_ON 

0x0100-LTC_ON 

0x0200-CTC_ON 

0x0400-PL_ON 

0x1000-EXERNAL_MODE_START_ON 

0x2000-DMOD_NEG_ON 

0x4000-DMOD_GATE_ON 

0x8000-REDUCED_ECHO_MODE_ON 

46 GMC wwwww:ret word Modus = Modus AND ~wwwww 

47 GMS wwwww:ret word Modus = Modus OR wwwww 

48 GMT wwwww:ret word Modus = Modus XOR wwwww 

47 GF (ff.ff):ret 1.2 24 V float Fan Voltage Set(300mA max.) 

48 GFD (ff.ff):ret 1.2 24 V float Fan Voltage Default 

49 GX (R | S) bool External Control (Run|Stop) 

50 GT (H):ret float Device Temp. (Head) 

51 GVS :ret word (S-Software Version) 

52 GVN :ret word (N-Serial Number) 

53 P Pilot Laser 

54 PL (R | S) S bool Pilot Laser (Run | Stop) 

55 PP ww 0 16 0 word Pilot Modulation 

( ) - optional Values are set in brackets 

(b) - type bool {b=0 or b='S' (false,stop); b=1 or b='R' (true,run)} 

:ret - the value will be returned, either parameter has been putted or not 

'~' binary NOT, '|' OR 

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2 RXD 

3 TXD 

5 GND 

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Sub-D 9, female Type 

as viewed from backside 

Standard RS232-Connector connected to PC 

(No Null-Modem Cable !) 

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Deutschland: 

Schweiz: 

Inselkammerstraße 10 Gründenstraße 82 

D-82008 Unterhaching CH-8247 Flurlingen 

Tel: 089 614 503-10 Tel.: 052 647 42 00 

E-Mail: power@hy-line.de E-Mail: power@hy-line.ch 

URL: www.hy-line.de URL: www.hy-line.ch 

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OsTech electro-optical-instruments Laser- und ... - Hy-Line

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