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Zhu; Lijun
Dublin, CA
No. of patents:

Patent Number Title Of Patent Date Issued
7661889 Optical multiplexer and transmitter February 16, 2010
The present invention provides an apparatus for multiplexing a plurality of light waves with different wavelengths. The apparatus includes a laser sub-assembly, a multiplexer sub-assembly, and a receptacle sub-assembly. The laser sub-assembly includes a plurality of lasers for radiating
7559705 Optical ROSA for long reach optical transceiver July 14, 2009
A receiver optical amplifier assembly (ROSA) is disclosed that provides for greater tolerances in alignment. The ROSA includes a multimode fiber stub to receive a light beam from a single mode optical fiber. The light beam from the multimode fiber stub is focused by a lens system onto th
7532826 Optical demultiplexer and receiver assembly May 12, 2009
Apparatus for demultiplexing a wavelength division multiplexed optical signal comprising a plurality of signals each having a different wavelength. The apparatus comprises a demultiplexer sub-assembly and a multi-channel receiver optical sub-assembly. The demultiplexer sub-assembly c
7184621 Multi-wavelength transmitter optical sub assembly with integrated multiplexer February 27, 2007
A four-channel multi-wavelength transmitter optical sub assembly (TOSA) with an integrated multiplexer is described that includes four lasers, four collimating lenses, a multiplexer, an isolator, a focusing lens, and an optical fiber. The integrated multiplexer comprises three filters in

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