Saturable bragg reflector

Details Saturable bragg reflector Saturable bragg reflector

H - Electricity

01

S

H01S 3/02 (2006.01) G02F 1/35 (2006.01) H01S 3/098 (2006.01) G02F 1/355 (2006.01)

Patent

CA 2169785

Low optical loss and simplified fabrication are achieved by a nonlinear reflector which incorporates one or more semiconductor quantum wells within a standard semiconductor quarter wave stack reflector. The nonlinear reflector provides an intensity dependent response which permits it to be used for saturable absorption directly in a main oscillating cavity of a laser. Saturation intensity of the nonlinear reflector and thereby related laser modelocking properties can be controlled by disposing the quantum well at a particular position in the reflector structure.

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