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Wide range wavelength tuning by controlling the Bragg wavelength electrically was demonstrated for the first time in a newly developed 1.3 ?m distributed Bragg reflector double channel planar buried heterostructure laser diode (DBR-DC-PBH LD). Lasing wavelength was tuned over 40 ? with 60 mA tuning current change, maintaining single longitudinal mode (SLM).
CW light output power as high as 38 mW at room temperature and with a CW operable temperature as high as 80?C, both under single-longitudinal-mode operation, has been achieved for the first time in newly developed 1.3 ?m distributed-feedback (DFB) laser diodes with a double-channel planar buried heterostructure (DC-PBH).
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