Wavelength stabilized diode laser

摘要

A hybrid external cavity laser and a method for configuring the laser having a stabilized wavelength are disclosed. The laser comprises a semiconductor gain section and a volume Bragg grating, wherein a laser emission from the semiconductor gain section is based on a combination of a reflectivity of a front facet of the semiconductor gain section and a reflectivity of the volume Bragg grating and the reflectivity of the semiconductor gain section and the volume Bragg grating are insufficient by themselves to support the laser emission. The hybrid cavity laser further comprises an etalon that provides further wavelength stability.

主权项

1. A laser device generating a single stable laser emission comprising:
a first cavity having a first plurality of non-lasing resonances, the first cavity comprising:
a gain section comprising:
a rear facet having a first reflectivity; anda front facet having a second reflectivity; and a second cavity having a second plurality of non-lasing resonances, the second cavity overlapping the first cavity and comprising:
the rear facet having the first reflectivity; anda volume Bragg grating, external to the front facet, having a known reflectivity; wherein the second reflectivity and the known reflectivity are selected to cause one of said first plurality of non-lasing resonances and one of said second plurality of non-lasing resonances to be substantially coincident at the laser emission.