1
Tomas Brenner, Paul A Morton, Daniel Xiaoxing Zhu: Crosstalk-free signal source for dense wavelength division multiplexed systems. CIENA Corporation, Daniel N Daisak, David L Soltz, May 15, 2001: US06233080 (199 worldwide citation)

An optical device is provided which locks the wavelength output of a laser transmitter in an optical transmission system as well as preventing the propagation of unwanted signals generated by the laser transmitter prior to the transmitter reaching the desired operating wavelength thereby reducing cr ...


2
Peter W Evans, Pavel Studenkov, Mehrdad Ziari, Matthias Kuntz, Scott Corzine, Masaki Kato, Vikrant Lal: Scattering device on an arrayed waveguide grating. Infinera Corporation, Harrity & Harrity, David L Soltz, February 17, 2015: US08958665 (143 worldwide citation)

An optical device may include a substrate; an arrayed waveguide grating provided on the substrate and having first and second slabs; multiple first waveguides extending from the first slab, the multiple first waveguides may supply respective first optical signals to the first slab; multiple second w ...


3
Michael G Taylor, Balakrishnan Sridhar: Optical amplifier having first and second stages and an attenuator controlled based on the gains of the first and second stages. Ciena Corporation, David L Soltz, April 11, 2000: US06049413 (86 worldwide citation)

An optical amplifier is disclosed having substantially uniform spectral gain. The amplifier comprises a variable optical attenuator coupled between first and second segments of active optical fiber. The attenuation of the optical attenuator is adjusted in accordance with the optical power input to t ...


4
Tomas Brenner, Jean Luc Archambault: Directly modulated semiconductor laser having reduced chirp. CIENA Corporation, David L Soltz, September 5, 2000: US06115403 (73 worldwide citation)

In accordance with the present invention, an in-line fiber Bragg grating is coupled to the output of a directly modulated DFB laser. The grating preferably rejects chirp induced frequencies of light emitted by the DFB laser. Accordingly, light transmitted through the grating is spectrally narrowed a ...


5
Dan Cedrone, Walter Dray, Ed Klein, James Regan, Bappa Sinha, Ming Teh Ma, Jeffrey Weiss: Rapid ring protection switching system. Ciena Corporation, Patricia A Sheehan, David L Soltz, March 25, 2003: US06538987 (72 worldwide citation)

A system with predefined primary and secondary routes sets up corresponding virtual circuits over both routes. A destination node maintains primary and secondary sets of routing tables that contain, respectively, routing information over each of the rings for every virtual circuit. A destination nod ...


6
Bo Ping Xie: Heat pipe heat sink for cooling a laser diode. Ciena Corporation, David L Soltz, Michael R Cammarata, February 11, 2003: US06517221 (64 worldwide citation)

A heat sink module consistent with the present invention includes a heat pipe for efficient heat transfer heat away from a semiconductor pump laser. The heat pipe heat sink occupies less space than a conventional heat sink, and the condenser portion of the heat pipe heat sink can be easily manufactu ...


7
John E Bowers, Aaron R Hawkins: Semiconductor hetero-interface photodetector. Ciena Corporation, Charles Berman, Anthony Orler, David L Soltz, June 13, 2000: US06074892 (56 worldwide citation)

By using wafer fusion, various structures for photodetectors and photodetectors integrated with other electronics can be achieved. The use of silicon as a multiplication region and III-V compounds as an absorption region create photodetectors that are highly efficient and tailored to specific applic ...


8
Keith A Condict, Stephen R Harmon, Wesley R Jones, Michael B Peters Rodbell: Distributed intelligence wavelength division multiplexed network. Ciena Corporation, Daniel N Daisak, David L Soltz, December 19, 2000: US06163392 (50 worldwide citation)

The present invention is directed toward a distributed intelligence fiber-optic communication network in which node control processors (NCPs) associated with each network element periodically transmit identification and status information to the other NCPs in the network. Various faults in the netwo ...


9
Victor Mizrahi, Stephen R Harmon: Laser wavelength control device. CIENA Corporation, David L Soltz, August 24, 1999: US05943152 (48 worldwide citation)

A laser control system is disclosed including a microprocessor, which precisely adjusts the wavelength of light output from the laser by monitoring the transmissivity of an in-fiber Bragg grating coupled to the output of the laser. The Bragg grating is fabricated to have a minimum transmissivity at ...


10
Harshad P Sardesai: Dispersion compensating element having an adjustable dispersion. Ciena Corporation, David L Soltz, July 10, 2001: US06259845 (46 worldwide citation)

In accordance with the present invention, a dispersion compensation module is coupled to a transmission optical fiber. The dispersion compensation module includes segments of optical fiber of varying length, some of which have a positive dispersion while other have a negative dispersion. Selected op ...