Coaxial fiber-Bragg-grating external-cavity semiconductor laser module without temperature control

An uncooled coaxial fiber-Bragg-grating external-cavity semiconductor laser module was fabricated for the first time. A single mode operation without mode-hopping was obtained up to 100 mA and between -30/spl deg/C and 70/spl deg/C. The lasing wavelength dependencies on temperature and current were as small as 11 pm/K and 2 pm/mA, respectively.