An optical scheme for stable two-color operation from a single laser diode (LD) by means of a multiplexed reflective Bragg mirror is proposed and demonstrated. A mode spectral separation of similar to 3 nm (1 THz) and laser linewidth less than 80 pm, with sidemode suppression ratio over 24 dB, and an output power of 1.7 W are achieved with a monolithic dual-wavelength Bragg mirror. Temperature stability of spectral locking of an LD in dual-wavelength operation is presented.
|Number of pages||3|
|Journal||IEEE Photonics Technology Letters|
|Publication status||Published - 1 Aug 2009|
- Dual-wavelength operation
- semiconductor laser
- volume Bragg grating (VBG)
- TERAHERTZ RADIATION