Wanseok S Seo

US Patent:

20170331548, Nov 16, 2017

Filed:

Jul 31, 2017

Appl. No.:

15/665341

Inventors:

- Ridgefield Park NJ, US
Wanseok SEO - Irvine CA, US
Soonwon HONG - Seoul, KR
Moon Soo PARK - Irvine CA, US

Assignee:

OE Solutions America, Inc. - Ridgefield Park NJ

International Classification:

H04B 10/079
H04B 10/077
H04B 10/077
H04L 1/00

Abstract:

Methods and apparatuses for optical communications are provided. By way of example, an optical transceiver includes a processing device coupled to a memory, an optical subassembly, and a programmable device. The optical subassembly is configured to receive and modulate a first signal carrying high speed user data for transmission to a remote device over an optical link. The programmable device is coupled to the processing device and configured to receive data relating to digital diagnostic monitoring information (DDMI) of the optical transceiver from the processing device, perform forward error correction encoding on the DDMI data to produce a remote digital diagnostic monitoring (RDDM) signal, and send the RDDM signal to the optical subassembly as a second signal to modulate for transmission. The optical subassembly is configured to current modulate the second signal on the first signal to produce a double modulated optical signal for transmission to the remote device.

US Patent:

20170272162, Sep 21, 2017

Filed:

Mar 14, 2017

Appl. No.:

15/458937

Inventors:

- Ridgefield Park NJ, US
Jiwon JANG - Irvine CA, US
Wanseok SEO - Irvine CA, US
Daejin KIM - Irvine CA, US
Bongsin KWARK - Irvine CA, US

Assignee:

OE Solutions America, Inc. - Ridgefield Park NJ

International Classification:

H04B 10/2507
H04B 10/69

Abstract:

A method and apparatus for compensating optical dispersion over an optical fiber are provided in fiber optic communications to increase a transmission distance by overcoming the optical dispersion caused by wavelength changes of light sources and dispersion effects of a fiber. In one implementation, the present technology may be implemented in the form of a RLC passive microwave filter with no extra power consumption. By way of example, an optical receiver may include a photodiode operable to receive an optical signal and produce an electrical signal, a transimpedance amplifier (TIA) operable to receive the electrical signal and produce a first amplified signal, and an electronic dispersion compensation (EDC) device operable to receive the first amplifier signal from the TIA and compensate or reduce the effects of optical dispersion on the received electrical signal.

US Patent:

20160277104, Sep 22, 2016

Filed:

Mar 18, 2016

Appl. No.:

15/073785

Inventors:

- Englewood Cliffs NJ, US
Wanseok SEO - Irvine CA, US
Soonwon HONG - Seoul, KR
Moon Soo PARK - Irvine CA, US

Assignee:

OE Solutions America, Inc. - Englewood Cliffs NJ

International Classification:

H04B 10/079
H04L 1/00

Abstract:

Methods and apparatuses for optical communications are provided. By way of example, an optical transceiver includes a processing device coupled to a memory, an optical subassembly, and a programmable device. The optical subassembly is configured to receive and modulate a first signal carrying high speed user data for transmission to a remote device over an optical link. The programmable device is coupled to the processing device and configured to receive data relating to digital diagnostic monitoring information (DDMI) of the optical transceiver from the processing device, perform forward error correction encoding on the DDMI data to produce a remote digital diagnostic monitoring (RDDM) signal, and send the RDDM signal to the optical subassembly as a second signal to modulate for transmission. The optical subassembly is configured to current modulate the second signal on the first signal to produce a double modulated optical signal for transmission to the remote device.