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

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Other solution to improve the brightness at 980 nm developed in Thales Research and Technology (4) : the tapered laser diode Between power (broad-area laser) and spatial beam quality (ridge laser) Straight section (ridge) High reflection (HR) Tapered section θ Anti-reflection coatings (AR) = 3% output Ridge L1 Tapered sec. L2 2-3 mm
Between the broad-area laser and the ridge: the tapered laser 200 µm 2300 µm // Far- field at 600 mW 1,0 P (mW) 1000 800 600 400 200
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 and 34: In the parallel direction : 2 main
Page 35 and 36: The broad-area laser 100 µm large
Page 37 and 38: The ridge laser 5 µm large * 2mm l
Page 39 and 40: Others solutions to improve the bri
Page 41 and 42: Others solutions to improve the bri
Page 43 and 44: Semiconductor amplifier and refract
Page 45: Others solutions to improve the bri
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

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