24 September 1996 Laser diode in a coherent resolved interferometer
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Proceedings Volume 2886, Semiconductor Lasers II; (1996) https://doi.org/10.1117/12.251911
Event: Photonics China '96, 1996, Beijing, China
A short coherence length of a laser diode (LD) is required in coherent resolved interferometers. The coherence length of a LD can be reduced by modulating the source with a high frequency signal, which is superposed on the driving current for the LD. A 980nm laser diode in this paper is modulated with a frequency 40MHz and modulation depth 0.5, where its coherence length is compressed 20 times. The first side-band peak in the coherence function is reduced by 10dB, but it is hard to suppress them completely.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Dongsong Sun, Dongsong Sun, Shigang Liu, Shigang Liu, Yuan Zhao, Yuan Zhao, Lijie Qiao, Lijie Qiao, "Laser diode in a coherent resolved interferometer", Proc. SPIE 2886, Semiconductor Lasers II, (24 September 1996); doi: 10.1117/12.251911; https://doi.org/10.1117/12.251911

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