Wavelength tunable laser

Details Wavelength tunable laser Wavelength tunable laser

2006-03-01

2010-02-16

Harvey, Minsun (Department: 2828)

Coherent light generators

Particular resonant cavity

Folded cavity

C372S034000

Reexamination Certificate

active

07664156

ABSTRACT:
A wavelength tunable laser comprises a multiple ring resonator, an input/output side waveguide coupled to a ring resonator, a reflection side waveguide coupled to a ring resonator, a multiple ring resonator, a PLC substrate where the input/output side waveguide and the reflection side waveguide are formed, a high reflection film set on the reflection side waveguide, a SOA connected to the input/output side waveguide through a anti-reflection film, a film heater which is placed above a ring waveguide for wavelength tuning in the PLC substrate and provides heat to the ring waveguide for wavelength tuning, and a adiabatic groove, which restrain conducting heat provided by the film heater to the PLC substrate except the ring waveguide for wavelength tuning.

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