Alpine Optoelectronics Inc.

Tongqing Wang

Dawei Zheng

Zhoufeng Ying

Jin Yao

Xingyu Zhang

Ming Ding

An integrated transmitter chip having a transmitter block, the transmitter block having: a first power divider optically connected to a first input port; a second power divider optically connected to a second input port; a first plurality of optical channels optically branched from the first power divider; a second plurality of optical channels optically branched from the second power divider; a first multiplexer optically connected to a first optical channel of the first plurality of optical channels and a first optical channel of the second plurality of optical channels, and a second multiplexer optically connected to a second optical channel of the first plurality of optical channels and a second optical channel of the second plurality of optical channels. The integrated transmitter chip may be configured to utilize polarization division multiplexing or wavelength division multiplexing to combine optical signals depending on the application of the corresponding integrated transmitter chip.

Integrated multi-channel photonics transmitter chip having dual-channel multiplexers

A method and system for locking the resonance frequency of ring resonators by using laser sources to emit a plurality of different wavelengths, applying a tagging signal to each of the wavelengths, multiplexing the tagged wavelengths using a wavelength division multiplexor, coupling the multiplexed tagged wavelengths onto a bus waveguide, detecting the multiplexed tagged wavelengths with a first photodetector disposed before a first ring resonator and a second photodetector disposed after a last ring resonator of a plurality of ring resonators, sending the signals detected by the first and second photodetector to a processor, which identifies and processes the tagging signals, generating a control signal for each ring resonator, by the processor and applying the control signals to phase shifters on each ring resonator of the plurality of ring resonators to tune and align the resonance wavelengths of the ring resonators with the wavelengths of the corresponding laser sources.

System and apparatus of controlling ring resonator operating points

Embodiment of present invention provide an optical subassembly that includes a first, a second, and a third band filter (BF) each having a common port (CP), a port-A (PA), and a port-B (PB). The PA of the second BF is connected to the PA of the third BF and the PB of the first BF is connected to the PB of the third BF. The optical subassembly is adapted to route a first optical signal of a blue band from the PA to the CP of the first BF; to route the first optical signal from the CP of the second BF to the CP of the third BF; to route a second optical signal of a red band from the CP of the third BF to the CP of the first BF; and to route the second optical signal from the CP to the PB of the second BF.

Optical subassembly for bidirectional WDM application

An integrated transmitter chip comprising: at least one input port disposed at a first end of the integrated transmitter chip; a first variable power divider optically connected to each input port of the at least one input port; a second and a third variable power dividers optically branched from each first variable power divider; a first and a second optical channel optically branched from the second variable power divider, a third and a fourth optical channel optically branched from the third variable power divider; and at least one WDM optically attached to corresponding optical channels and configured to selectively modify the polarization of and multiplex corresponding optical signals into a output optical signal, wherein a laser beam is launched into an input port, split by corresponding variable power dividers based upon each dividers corresponding splitting ratio, then multiplexed and combined into an output optical signal having dual polarization modes.

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Newark, CA, United States of America

Tongqing Wang