Kevin Zhang, 35Burlingame, CA

6621954, Sep 16, 2003

Nov 14, 2000

09/713634

Ping Xie - San Jose CA
Kevin Zhang - San Jose CA
Robert Burn, III - Woodside CA

Finisar Corporation - Sunnyvale CA

G02B 632

385 33

A portion of an optical device is disclosed. In one aspect of the present invention, the device comprises a cylinder formed about an axis having first and second ends, the second end being formed so as to define a segment of an inward-facing concave spherical surface. A module is provided defining a cylinder formed about the axis and having first and second ends and an optical element disposed therein about the axis. The first end of the module is formed so as to define a segment of an outward-facing convex spherical surface, and the convex surface is complimentary in shape to the concave surface. The complimentary concave and convex surfaces of the cylinder and the module are mated so as to allow the optical element to be aligned about a plane forming a predetermined angle with the axis.

6850364, Feb 1, 2005

Jun 12, 2002

10/170055

Ping Xie - Cupertino CA, US
R. Brad Bettman - Mountain View CA, US
Haisheng Rong - San Jose CA, US
Kevin Zhang - Santa Clara CA, US
Yalan Mao - Cupertino CA, US
Wei Wang - San Jose CA, US
Simon Yuanxiang Wu - San Jose CA, US

Finisar Corporation - Sunnyvale CA

G02B 530

359497, 359124, 359127, 359483, 359494, 359495, 359498

An optical device that can be used in a range of telecommunications applications including optical multiplexers/demultiplexers and optical routers. The optical device includes an optical processing loop which allows multi-stage performance characteristics to be achieved with a single physical filtration stage. Optical processing on the first leg and second legs of the loop is asymmetrical thereby improving the integrity of the optical signals by effecting complementary chromatic dispersion on the first and second legs. In an embodiment of the invention the optical device includes a fundamental filter cell, a retro reflector and a splitter/combiner. The fundamental filter cell filters optical signals propagating on each of two legs of an optical loop which intersects the fundamental filter cell. The fundamental filter cell operates as a full waveplate to the odd set of channels and a half waveplate to the even set of channels on a selected one of the two legs and as a half waveplate to the odd set of channels and a full waveplate to the even set of channels on a remaining one of the two legs. The retro reflector optically couples with the fundamental filter cell to reflect the optical signals from one of the two legs to an other of the two legs to form the optical loop.

6891999, May 10, 2005

Aug 28, 2001

09/941474

Kevin Zhang - Santa Clara CA, US
Ping Xie - San Jose CA, US

Finisar Corporation - Sunnyvale CA

G02B006/26
G02B006/42

385 31, 385 33, 385 52

Methods and apparatus for tuning an optical element include, in one aspect, an optical element having a specified response at a predetermined location and means for redirecting incident light to a location on the optical element other than the predetermined location so as to achieve a desired response.

7173763, Feb 6, 2007

Jun 11, 2004

10/866443

Tengda Du - Fremont CA, US
Kevin Dapeng Zhang - Fremont CA, US
Xin Luo - Sunnyvale CA, US

Finisar Corporation - Sunnyvale CA

G02B 5/30

359498, 359497, 359495, 359501, 359834, 385 11, 398 43, 398 65

An optical interleaver for use in a range of telecommunications applications including optical multiplexers/demultiplexers and optical routers. The optical device includes an optical processing loop which allows multi-stage performance characteristics to be achieved with a single physical filtration stage. Optical processing on the first leg and second legs of the loop is asymmetrical thereby improving the integrity of the optical signals by effecting complementary chromatic dispersion on the first and second legs. A fundamental filter cell within the interleaver filters optical signals propagating on each of the two legs of the optical loop which intersects the fundamental filter cell.

7228025, Jun 5, 2007

Oct 31, 2003

10/698561

Johnny Zhong - Union City CA, US
Yin Zhang - San Jose CA, US
Steve Wang - San Jose CA, US
Ping Xie - Cupertino CA, US
Kevin Zhang - Fremont CA, US

Finisar Corporation - Sunnyvale CA

G02B 6/26
G02B 6/42
G02B 6/32

385 16, 385 18, 385 20, 385 22, 385 31, 385 33, 385 34, 385 39, 385 47, 385 50

A thin film interleaver device is disclosed. The thin film interleaver includes thin film optics. The thin film(s) are formed such that they reflect one group of wavelengths while allowing a second group of wavelengths to pass through the thin film(s). The thin film(s) exhibit a flat top frequency response across the channel bandwidths of the multiplexed signal for which the thin film filter is designed such that the thin film interleaver is less sensitive to wavelength drift and temperature variations.

7317851, Jan 8, 2008

Nov 26, 2003

10/724471

Johnny Zhong - Union City CA, US
Steve Wang - San Jose CA, US
Ping Xie - Cupertino CA, US
Kevin Zhang - Fremont CA, US

Finisar Corporation - Sunnyvale CA

G02B 6/26
G02B 6/28

385 24, 385 15, 385 46, 385 47, 385 48

An optical add/drop patch cord. The optical add/drop patch cord has an optical add/drop component enclosed by a casing. An input fiber is optically coupled to the optical add/drop component and permanently or detachably connected to the casing. A drop fiber is optically coupled to the optical add/drop component and permanently or detachably connected to the casing. An add fiber is optically coupled to the optical add/drop component and permanently connected to the casing. An output fiber is optically coupled to the optical add/drop component and permanently connected to the casing.

7366371, Apr 29, 2008

Apr 24, 2007

11/739422

Zhenli Wen - Shanghai, CN
Kevin Dapeng Zhang - Fremont CA, US
Dongsheng Han - Zhuhai, CN
Fahua Lan - Pudong Shanghai, CN

Finisar Corporation - Sunnyvale CA

G02B 6/28

385 24, 385 15, 385 31, 385 33

Spatially-efficient optical multiplexers and optical demultiplexers include elements interrelating along orthogonal axes. A transmission block of extreme thinness has highly reflective coatings on opposed parallel surfaces. Lasers of multiplexer are on one side of transmission block with transmission axes perpendicular to transmission block surface. An associated multiplexed signal transmitting port on opposite side of transmission block has receiving axis parallel to transmission block surface on that side. Detectors of demultiplexer are on one side of transmission block with reception axes perpendicular to transmission block surface. An associated multiplexed signal receiving port on opposite side of transmission block has receiving axis parallel to transmission block surface on that side. A unitary structure performs both optical multiplexer functions and optical demultiplexer function with a single thin transmission block. Related optical signal processing methods are included.

7561766, Jul 14, 2009

May 24, 2007

11/753499

Johhny Zhong - Union City CA, US
Yin Zhang - San Jose CA, US
Steve Wang - San Jose CA, US
Ping Xie - Cupertino CA, US
Kevin Zhang - San Jose CA, US

Finisar Corporation - Sunnyvale CA

G02B 6/26
G02B 6/42
G02B 6/32

385 16, 385 18, 385 20, 385 22, 385 31, 385 33, 385 34, 385 39, 385 47, 385 50

A thin film interleaver device is disclosed. The thin film interleaver includes thin film optics. The thin film(s) are formed such that they reflect one group of wavelengths while allowing a second group of wavelengths to pass through the thin film(s). The thin film(s) exhibit a flat top frequency response across the channel bandwidths of the multiplexed signal for which the thin film filter is designed such that the thin film interleaver is less sensitive to wavelength drift and temperature variations.