发明名称 |
Polarization switchable quantum well laser |
摘要 |
A QW diode laser whose polarization can be switched. In one embodiment, the device incorporates a tensile strained quantum well active region, whose thickness is adjusted so that the heavy hole and light hole band edges are of the same energy. Since the heavy hole transition provides TE-mode gain, while the light hole band provides mostly TM-mode gain, the resulting laser polarization will be very sensitive to the threshold carrier density. With an intracavity loss modulator in such a structure, the polarization could be switched. Other switching techniques are also described.
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申请公布号 |
US5396508(A) |
申请公布日期 |
1995.03.07 |
申请号 |
US19920948522 |
申请日期 |
1992.09.22 |
申请人 |
XEROX CORPORATION |
发明人 |
BOUR, DAVID P.;PAOLI, THOMAS L.;TREAT, DAVID W. |
分类号 |
H01S5/00;H01S5/028;H01S5/06;H01S5/062;H01S5/065;H01S5/10;H01S5/34;H01S5/343;H01S5/40;(IPC1-7):H01S3/18;H01S3/102 |
主分类号 |
H01S5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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