A compact tunable laser module integrating a newly developed DBR/Ring laser and an extremely-high- Δ PLC wavelength locker is demonstrated with narrow spectral linewidth of <100 kHz across the full C-band.
We demonstrated the lasing operation of GaInAsP/InP vertical cavity surface emitting lasers grown by a chemical beam epitaxy. The lowest threshold current was 2.7mA at 77K CW for 30pmf devices. By changing the cavity length employing an external reflector, continuous tuning of 404 was achieved for the
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