Affordable Access

Control of the lasing wavelength by a sampled grating in a complex-coupled DFB laser

Authors
  • wang, h
  • zhu, hl
  • chen, xf
  • kong, dh
  • wang, ls
  • zhang, w
  • liu, y
  • zhao, lj
  • wang, w
  • chinese, h r wang
Publication Date
Jan 01, 2009
Source
Knowledge Repository of SEMI,CAS
Keywords
License
Unknown
External links

Abstract

The lasing wavelength of a complex-coupled DFB laser is controlled by a sampled grating. The key concepts of the approach are to utilize the -1st order (negative first order) reflection of a sampled grating for laser single mode operation, and use conventional holographic exposure combined with the usual photolithography to fabricate the sampled grating. The typical threshold current of the sampled grating based DFB laser is 32 mA, and the optical output is about 10 mW at an injected current of 100 mA. The lasing wavelength of the device is 1.5356 mu m, which is the -1st order wavelength of the sampled grating.

Report this publication

Statistics

Seen <100 times