1 April 1993 Control of optical-feedback-induced laser intensity noise in optical data recording
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Optical Engineering, 32(4), (1993). doi:10.1117/12.130137
Abstract
The usefulness of semiconductor lasers can be greatly limited when the laser is subjected to uncontrolled optical feedback (OFB). In particular, the laser intensity noise can be severely degraded when OFB is greater than 0.1%. Although the technique of high-frequency injection (HFI) can solve this problem, the proper modulation frequency and depth must be chosen empirically. We investigate this problem through cornputer simulations of the multimode stochastic rate equations, modified to include OFB and HFI. By providing the program with measurable laser and system parameters, the simulations predict the HFI modulation frequency and depth that optimize the laser behavior. The results of the simulations are compared with experiment, and good agreement is obtained.
George R. Gray, Andrew T. Ryan, Govind P. Agrawal, Edward C. Gage, "Control of optical-feedback-induced laser intensity noise in optical data recording," Optical Engineering 32(4), (1 April 1993). https://doi.org/10.1117/12.130137
JOURNAL ARTICLE
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KEYWORDS
Modulation

Semiconductor lasers

Laser optics

Chaos

Optical recording

Digital recording

Optical discs

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