Tunable Single-Frequency Semiconductor Laser Module Based on Two-Pass 1550 nm Wavelength Amplifier
The results of work on the creation of tunable single-frequency semiconductor laser modules for a wavelength of 1550 nm with an external cavity based on fiber Bragg gratings (FBGs) formed in a single-mode fiber are presented. The methods for discrete and smooth tuning of the radiation wavelength are considered. The presented laser modules are capable of generating dynamically stable single-frequency radiation with a side mode suppression of more than 40 dB, a lasing line width of 100–500 kHz, and an output optical power of more than 35 mW. The wavelength tuning of the radiation spectrum of the laser module was 1.5 nm.
Tags: fiber bragg gratings single-frequency tunable laser tuning of the radiation wavelength волоконные брэгговские решетки одночастотный перестраиваемый лазер перестройка длины волны излучения
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