High Power Diode Lasers - Center for Biomedical Optics and New ...

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The broad-area laser 100 µm large * 2mm long : The broad-area laser 0.98µm AR/HR 100 µm * 2mm: 8.5W CW, (usually operating at 3-4 W) Threshold : 340mA (170 A/cm²) Efficiency : 0.95W/A Mondial Record : 10.6W CW (Botez, U Wisc.) I (u.a.) 1,0 0,8 0,6 0,4 // Far-field at 1W // 2.5 10 1.0 0,2 Voltage U /V 2.0 1.5 1.0 V P eff . 9 8 7 6 5 4 3 Optical <strong>Power</strong> P /W 0.8 0.6 0.4 Efficiency η C I (u.a.) 0,0 -15 -10 -5 0 5 10 15 1,0 0,8 0,6 0,4 Angle (°) // Near-field at 1W // 0.5 2 1 0.2 0,2 0.0 0 0 2 4 6 8 1 0 C u rre nt I /A 0.0 0,0 0 40 80 120 160 200 240 x (µm) At 1W , parallel M² > 15 …
The broad-area laser 100 µm large at 980 nm : reliability PROFIL DE VIEILLISSEMENT TGB 969 P= 1W I=1.4A à 30°C PUISSANCE OPTIQUE (W) 1.60 1.40 1.20 1.00 0.80 0.60 0.40 0.20 0.00 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000 13000 14000 15000 16000 TEMPS CUMULE (HEURES) 1-4 1-6 1-7 1-8 1-9 2-5 2-7
Page 1 and 2: Bio-Photonics ’03 Summer School H
Page 3 and 4: How is a laser diode Max. size : 3
Page 5 and 6: Which material system for which wav
Page 7 and 8: substrate Schematic of the growth o
Page 9 and 10: Layers growth : 2 kinds of epitaxy
Page 11 and 12: Process Three steps of the planar p
Page 13 and 14: And electrical wires soldering …
Page 15 and 16: The laser diode : assymetric device
Page 17 and 18: • power measurement : high diverg
Page 19 and 20: • far-field measurement Laser dio
Page 21 and 22: W(z) = W W(z) 0 ⎛ 1+ ⎜ ⎜ ⎝
Page 23 and 24: • Catastrophic optical mirror dam
Page 25 and 26: Fabrication •Materials • Epitax
Page 27 and 28: Fabrication •Materials • Epitax
Page 29 and 30: Why a high brightness laser diode a
Page 31 and 32: 12 11 10 CW optical power records d
Page 33: In the parallel direction : 2 main
Page 37 and 38: The ridge laser 5 µm large * 2mm l
Page 39 and 40: Others solutions to improve the bri
Page 43 and 44: Semiconductor amplifier and refract
Page 47 and 48: Between the broad-area laser and th
Page 49 and 50: Index guided tapered lasers bar Min
Page 51 and 52: • Tapered laser bars coupled in a
Page 53 and 54: Beam shaping technique General prin
Page 55 and 56: Beam shaping technique Schematic op
Page 57 and 58: ars at 808-980 nm On the laser diod
Page 59 and 60: Results with broad-area lasers - FB
Page 61 and 62: Results with tapered lasers - FBH 6
Page 63 and 64: CeramOptec GmbH Medical application
Page 65 and 66: CeramOptec GmbH Application Test of
Page 67 and 68: CeramOptec GmbH Application Test of
Page 69 and 70: Application Test of 975 nm system C

High Power Diode Lasers - Center for Biomedical Optics and New ...

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