Phased array laser diode - SAWTOOTH channeled array.:SAWTOOTH channeled array
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概要
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A novel phase-locked laser diode, a SAWTOOTH channeled array, is described. In order to obtain a uniform and flat active layer by liquid phase epitaxy, channels are formed all over the substrate in the array. The uniformity and flatness of the active layer produce a stable narrow beam and a reliable high output power operation. A nearly diffraction-limited (1.2°) two-lobed far field pattern at a high output power (200mW) is obtained from the 10-stripe (50 μm aperture) array with a double-heterostructure (DH). A low threshold current of 210mA and a high output power up to 1.3W cw are achieved in the 20-stripe (100 μm aperture) array with a separateconfinement heterostructure (SCH). The extrapolated lifetimes in 200mW cw operation at 50° Cexceed 30, 000hrs.
- 社団法人 レーザー学会の論文
社団法人 レーザー学会 | 論文
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