LASER MODULE AND OPTICAL TRANSMITTER

摘要

PROBLEM TO BE SOLVED: To enable a laser module to be easily replaced with another and easily changed in oscillation wavelength. SOLUTION: A laser module is equipped with a module main body 10 with a built-in LD chip 13. At this point, the module main body 10 and a connector plug 21 where a fiber Bragg grating(FBG) 23 is provided are discrete dismountable component parts, the module main body 10 and the connector plug 21 are joined together into a laser module, and a laser resonator is formed between the LD chip 13 and the FBG 23 so as to enable an optical fiber 25 to oscillate light signals of required wavelengths.