Axial-graded-index (AGRIN) lens-based wavelength division demultiplexer for multmode fiber optic systems

Chuang Zhou; Ray T. Chen

doi:10.1117/12.319642

19 August 1998 Axial-graded-index (AGRIN) lens-based wavelength division demultiplexer for multmode fiber optic systems

Chuang Zhou, Ray T. Chen

Proceedings Volume 3547, Semiconductor Lasers III; (1998) https://doi.org/10.1117/12.319642
Event: Photonics China '98, 1998, Beijing, China

Abstract

We have designed and fabricated the first multi-mode wavelength division multiplexer and demultiplexer (WDDM) based on axial graded index (AGRIN) lenses in conjunction with a volume holographic grating. The demonstration is made using a multi-mode fiber with a 50 micrometers core size. The diffraction-limited AGRIN lenses employed significantly increase the output coupling efficiency and reduce crosstalk when compared with the best homogeneous lens solutions previously reported. The volume holographic grating has a maximum diffraction efficiency of 92% at the center wavelength of 780 nm. An eight-channel WDDM device with a center wavelength of 780 nm and a channel separation of 4 nm is designed and demonstrated. The end-to-end insertion loss for each channel is between 2.8 and 3.8 dB. The maximum channel-to-channel crosstalk is -25 dB.

Citation Download Citation

Chuang Zhou and Ray T. Chen "Axial-graded-index (AGRIN) lens-based wavelength division demultiplexer for multmode fiber optic systems", Proc. SPIE 3547, Semiconductor Lasers III, (19 August 1998); https://doi.org/10.1117/12.319642

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