Out-of-plane optical coupling between an elliptical Gaussian beamand an angled single-mode fiber |
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Authors: | Chen WT Wang LA |
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Affiliation: | Inst. of Electro-Opt. Eng., Nat. Taiwan Univ., Taipei; |
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Abstract: | An approximate analytical model is developed for calculating the out-of-plane coupling efficiency between an elliptical Gaussian beam from a laser diode and an angled single-mode fiber. The simulation results obtained from the model indicate that when a laser diode has no tilt the coupling efficiency varies with relative rotation angle at a period of π rather than remains constant, and the period changes from π toward 2π as the tilt angle of laser diode increases. A proof-of-principle experiment is performed to demonstrate the validity of the model as the elliptical factor becomes large. Potential applications by employing the model are discussed |
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