OWDM - blankom

OWDM 

Optical Communications Mainframe – Optical Wavelength Division Multiplexer 

About the Product 

The OWDM optical wavelength division multiplexer module is designed to plug into the PBN optical 

communications mainframe chassis (OCM). 

The module can be optioned for simple, dual wavelength 1310 / 1550 nm applications. Alternative options are 

for up to four wavelengths for CWDM applications, up to 8 wavelengths for DWDM applications or multiple 

combinations of passive wavelength division multiplexer devices for customised applications. 

The CWDM version employs wavelengths in the range of 1271 nm to 1611 nm with 20 nm channel spacing. 

The DWDM versions are available in 4 and 8 channel configurations at 100 GHz or 200 GHz channel 

spacing. 

The OWDM is designed with front panel access to its SC/APC connectors, allowing ease of connection. The 

passive optical device uses proven fused biconic taper (FBT) techniques and thin film filter technology, along 

with fibre Bragg grating (FBG) designs to give low loss and high wavelength isolation. 

Copyright 2011 Pacific Broadband Networks (PBN). Downloaded All rights reserved. 28.10.2011 Reproduction by heike.bothe@blankom.de. without consent is prohibited. Reproduction without consent is prohibited. 

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In the interest of continuous product development, specifications may change without notice. PBN.OWDM - Datasheet V8b - Released 26 Aug 11



Features 

1310 / 1550 nm for standard WDM applications. 

CWDM wavelength range from 1271 nm to 1611 nm. 

1550 nm ITU grid wavelength range for DWDM applications. 

Passive temperature compensation. 

ITU recommended wavelengths, custom wavelengths available upon request. 

All fibre construction for stable environmental performance. 

Proven FBT/FBG and thin film filter designs for high performance and reliability. 

SC/APC connectors. 

Low insertion loss. 

Single slot in OCM. 

ITU Wavelength Table for CWDM 

CWDM Wavelengths (ITU grid) 

Option [Y] Wavelength Option [Y] Wavelength 

* Preferred wavelengths for analogue transmission schemes. 

1271 1271 nm 1451 1451 nm 

1291 1291 nm 1471 1471 nm 

1311 1311 nm 1491 1491 nm 

1331 1331 nm 1511 1511 nm * 

1351 1351 nm 1531 1531 nm * 

1371 1371 nm 1551 1551 nm * 

1391 1391 nm 1571 1571 nm * 

1411 1411 nm 1591 1591 nm 

1431 1431 nm 1611 1611 nm 


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ITU Frequency Grid for DWDM 

Option [Y] ITU frequency 

(THz) 

ITU wavelength 

(nm) 

Examples of channels available (channel spacing) 

4ch (100GHz) 4ch (200GHz) 8ch (100GHz) 8ch (200GHz) 

21 192.1 1560.61 1 

22 192.2 1559.79 

23 192.3 1558.98 2 

24 192.4 1558.17 

25 192.5 1557.36 3 

26 192.6 1556.55 

27 192.7 1555.75 4 

28 192.8 1554.94 

29 192.9 1554.13 5 

30 193.0 1553.33 1 


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In the interest of continuous product development, specifications may change without notice. PBN.OWDM - Datasheet V8b - Released 26 Aug 11 

CWDM port 1551 nm ± 5 nm 

31 193.1 1552.52 1 2 6 

32 193.2 1551.72 3 

33 193.3 1550.92 2 4 7 

34 193.4 1550.12 1 5 

35 193.5 1549.32 2 3 6 8 

36 193.6 1548.51 3 7 

37 193.7 1547.72 4 4 8 

38 193.8 1546.92 

39 193.9 1546.12 

40 194.0 1545.32 

41 194.1 1544.53 

42 194.2 1543.73 

43 194.3 1542.94 

44 194.4 1542.14 

45 194.5 1541.35 

46 194.6 1540.56 1 

47 194.7 1539.77 

48 194.8 1538.98 2 

49 194.9 1538.19 

50 195.0 1537.40 3 

51 195.1 1536.61 

52 195.2 1535.82 4 

53 195.3 1535.04 

CWDM port 1531 nm ± 5 nm 

1 1 1 

54 195.4 1534.25 2 2 5 

55 195.5 1533.47 3 2 3 

56 195.6 1532.68 4 4 6 

57 195.7 1531.90 3 5 

58 195.8 1531.12 6 7 

59 195.9 1530.33 4 7 

60 196.0 1529.55 8 8



Block Diagrams of Available Models 


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Block Diagrams of Available Models (cont.) 


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OWDM-RFOG61-SC 

Optical multiplexer for RFoG lines with EPON/GEPON and 1611 nm CATV/DOCSIS return path 

Containing two independent filters per OWDM module, with each one ‘tuned’ port for 1551 nm CATV forward path, one ‘tuned’ port for 

1611 nm CATV/DOCSIS return path and a ‘broadband’ port for EPON/GPON using 1311/1491 nm or any other free CWDM 

wavelengths. 

CMTS 

VoD Control RX or 

Spectrum Analyzer 

RFC5 - 8x8S - 0 LTM15 

DOCSIS 

RF 

Cross 

Connect 

RFC5 - 8x9S - 0 

DOCSIS 

RF 

Cross 

Connect 

OCMR - SNMP - US 

Laser 

Transmitter 

EPON/GEPON 

OLT 

EDFAM 

Optical 

Amplifier 

RPQRM 

Return path 

Quad 

Receiver 

Module 

1491 nm 

1311 nm 

1551 nm 

1611 nm 


OSP - S - 32 

1 - LINE 

2 - RT = 1611 nm 

3 - TV = 1551 nm 

4 - OLT = 1311/1491 nm 


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A B 

Front panel view 

OWDM - RFOG61 - SC 

DPON 

EPON 

GPON 

ONU 

Cable 

Modem 

TV with 

Set-top



OWDM-3RFOG-SC 

Optical multiplexer for RFoG lines 

Containing three independent filters per OWDM module, with each one ‘tuned’ port for 1551 nm forward path CATV injection and a 

‘broadband’ port for CATV return path or EPON/GPON using any other CWDM wavelengths like 1311 nm, 1491 nm, 1591 nm or 

1611 nm. 

CMTS 



RFC5 - 8x8S - 0 LTM15 

DOCSIS 

RF 

Cross 

Connect 

RFC5 - 8x9S - 0 

DOCSIS 

RF 

Cross 

Connect 


Laser 

Transmitter 

EDFAM 

Optical 

Amplifier 

RPQRM 

Return path 

Quad 

Receiver 

Module 

1551 nm 

1311 nm 

1491 nm 

1611 nm 


1 2 3 

4 5 6 

7 C 8 


OSP - S - 32 

OWDM - 3RFOG - SC 

1 = CATV 2 = COM 3 = OLT/RPQRM 

4 = CATV 5 = COM 6 = OLT/RPQRM 

7 = CATV C = COM 8 = OLT/RPQRM 


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DPON 

Cable 

Modem 

TV with 

Set-top



OWDM-3RFOG61-SC 

Optical multiplexer for 3 x RFoG lines with 1611 nm DOCSIS return path 

Containing three independent filters per OWDM module, with each one ‘tuned’ port for 1611 nm return path CATV/DOCSIS and a 

‘broadband’ port for CATV forward path plus EPON/GPON using any other CWDM wavelengths. 

CMTS 



RFC5 - 8x8S - 0 

DOCSIS 

RF 

Cross 

Connect 

RFC5 - 8x9S - 0 

DOCSIS 

RF 

Cross 

Connect 


LTM15 

Laser 

Transmitter 

EDFAM 

Optical 

Amplifier 

RPQRM - SC - RFOG 

Return path 

Quad 

Receiver 

Module 

QOLTM 

1311 nm 

1491 nm 

1551 nm 

1611 nm 


3RFOG61 

1 2 3 

4 5 6 

7 C 8 


OC - 1x32 

OWDM - 3RFOG61 - SC 

1 = 1610 2 = COM 3 = OLTM/QOLTM 

4 = 1610 5 = COM 6 = OLTM/QOLTM 

7 = 1610 C = COM 8 = OLTM/QOLTM 


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DPON/ 

MAU 

Cable 

Modem 

TV with 

Set-top



OWDM-3x21D2-SC 

Optical multiplexer with three injection filters for ITU DWDM ch 21 

Containing three independent filters per OWDM module, with each one ‘tuned’ port for ITU DWDM channel 21 with 200 GHz spacing 

and with one ‘broadband’ port for all other wavelengths. 


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Application Diagram for 4 HFC nodes on a single fibre core 


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Specifications 

Optical Performance 

Operating 

wavelengths 

OWDM-1315 [X] = C [X] = D2 OWDM-413 

1310 / 1550 nm 1271 nm to 

1611 nm 

1529.55 nm to 

1560.61 nm 


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1310 nm plus DWDM 

Insertion loss < 1.5 dB 0.7~1.8 dB 0.7~3.3 dB



Order Details 

OWDM-[W]-[X]-[Y]-[Z] Optical wavelength division multiplexer module for OCM 

W 1 1 channel DWDM or CWDM (single wavelength injection or extraction) 

1315 2 channel 1311 &1551 nm WDM 

2 2 channel DWDM or CWDM (four ports, dual wavelength injection or extraction) 

3 3 channel DWDM or CWDM 


413 4 channel DWDM or CWDM plus 1310 nm 





X C 20 nm spacing, CWDM 

D2 200 GHz spacing, DWDM 

Y ## Lowest channel number, based on ITU grid frequencies in THz. for DWDM 

[X] = D1 & D2 options only – Lowest channel on port 1 

#### Lowest channel wavelength based on ITU CWDM table 

[X] = C option only – Lowest wavelength on port 1 

Z E E2000/APC optical connectors 

SC SC/APC optical connectors 


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Configuration examples: 

OWDM-4-C-1511-SC 

4 channel CWDM module for OCM, 20 nm spacing 

ITU wavelengths 1511 nm, 1531 nm, 1551 nm, 1571 nm; SC/APC connectors 

OWDM-8-D2-21-SC 

8 channel DWDM module for OCM, 200 GHz spacing, 

ITU channels 21, 23, 25, 27, 29, 31, 33, 35; SC/APC connectors 

Specialized optical multiplexer versions: 

OWDM-3x21D2-SC 

3 x single channel injection filters for ITU DWDM ch21, 200GHz spacing, SC/APC 

ITU DWDM ch21 on ports 1, 4, 7 – Line on ports 2, 5, COM – Broadband on ports 3, 6, 8 

OWDM-3RFOG-SC 

3 x single channel injection filters 1551 nm for EPON/GPON/DPON/RFOG 

1551 nm on ports 1, 4, 7 – Line on ports 2, 5, COM – OLT on ports 3, 6, 8 – SC/APC connectors 

OWDM-3RFOG61-SC 

3 x single channel extraction filters 1661 nm for EPON/GPON/DPON/RFOG 

1661 nm on ports 1, 4, 7 – Line on ports 2, 5, COM – Broadband on ports 3, 6, 8 – SC/APC connectors 

OWDM-RFOG61-SC 

Dual channel injection filter 1551 nm, 1611 nm and OLT bypass 1311/1491 nm 

Line on ports A1, B1 (SC/APC green) – 1611 nm on ports A2, B2 (SC/APC green) – 1551 nm on ports A3, B3 (SC/APC green) – 

OLT bypass on ports A4, B4 (SC/PC blue) 


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For more information 

Contact PBN for further information. 

Pacific Broadband Networks 

Offices: 

China, Beijing : tel. +86-10-5791-0655 

Americas, Florida : tel. +1-703-579-6777 

AsiaPac, Melbourne : tel. +61-3-9780-5100 

Australia, Melbourne : tel. +61-3-9780-5100 

EMEA, Netherlands : tel. +31-36-536-8011 

info@pbnglobal.com 

www.pbnglobal.com 


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