| Patent Number |
Title Of Patent |
Date Issued |
| 7555220 |
Chromatic dispersion compensator (CDC) in a photonic integrated circuit (PIC) chip and method of |
June 30, 2009 |
| An optical equalizer/dispersion compensator (E/CDC) comprises an input/output for receiving a multiplexed channel signal comprising a plurality of channel signals of different wavelengths. An optical amplifier may be coupled to receive, as an input/output, the multiplexed channel sig |
| 7519246 |
Photonic integrated circuit (PIC) chips |
April 14, 2009 |
| A photonic integrated circuit (PIC) chip comprising an array of modulated sources, each providing a modulated signal output at a channel wavelength different from the channel wavelength of other modulated sources and a wavelength selective combiner having an input optically coupled to |
| 7477807 |
Monolithic transmitter photonic integrated circuit (TxPIC) semiconductor chip |
January 13, 2009 |
| A photonic integrated circuit (PIC) chip comprising an array of modulated sources, each providing a modulated signal output at a channel wavelength different from the channel wavelength of other modulated sources and a wavelength selective combiner having an input optically coupled to |
| 7340122 |
Monolithic transmitter photonic integrated circuit (TxPIC) with integrated optical components in |
March 4, 2008 |
| A photonic integrated circuit (PIC) chip comprising an array of modulated sources, each providing a modulated signal output at a channel wavelength different from the channel wavelength of other modulated sources and a wavelength selective combiner having an input optically coupled to |
| 7295783 |
Digital optical network architecture |
November 13, 2007 |
| A digital optical network (DON) is a new approach to low-cost, more compact optical transmitter modules and optical receiver modules for deployment in optical transport networks (OTNs). One important aspect of a digital optical network is the incorporation in these modules of transmi |
| 7283694 |
Transmitter photonic integrated circuits (TxPIC) and optical transport networks employing TxPICs |
October 16, 2007 |
| A photonic integrated circuit (PIC) chip comprising an array of modulated sources, each providing a modulated signal output at a channel wavelength different from the channel wavelength of other modulated sources and a wavelength selective combiner having an input optically coupled to |
| 7149433 |
Upgrade of optical amplifier site to a digital optical network site in an optical transmission n |
December 12, 2006 |
| A digital signal channel bypass is provided as bypass around an optical network optical amplifier, in particular, an analog type optical amplifier, such as an EDFA, in an optical transport network or system. The digital signal bypass provides for an ability to maintain the existing o |
| 7133193 |
Optical transmission systems including optical amplifiers, apparatuses and methods |
November 7, 2006 |
| Optical systems of the present invention include amplifiers configured to achieve maximum signal channel in a span downstream of the transmitter and amplifier site and to decrease the interaction between the wavelengths at high signal channel powers. In addition, the system can inclu |
| 7130499 |
Optical communication module utilizing plural semiconductor transmitter photonic integrated circ |
October 31, 2006 |
| An optical communication module comprises a plurality of monolithic semiconductor transmitter photonic integrated circuit (TxPIC) chips each having a plurality of optical signal channels approximating wavelengths on a standardized grid. Each of the channels comprises a laser source o |
| 7116851 |
Optical signal receiver, an associated photonic integrated circuit (RxPIC), and method improving |
October 3, 2006 |
| Photonic integrated circuits (PICs), also referred to as opto-electronic integrated circuits (OEICs), and more particularly to a PIC in the form of an optical receiver PIC or RxPIC chip and an optical transmitter PIC (TxPIC) are employed in an optical transport network. Integrated on the |
| 7062111 |
Optical communication module with one or more photonic integrated circuit (PIC) chips and an ext |
June 13, 2006 |
| A C- and/or L-band booster optical amplifier is utilized at the output of a semiconductor transmitter photonic integrated circuit (TxPIC) chip or the optical combined outputs of multiple semiconductor transmitter photonic integrated circuit (TxPIC) chips employed in an optical commun |
| 7058248 |
Optical communication system with multiple photonic integrated circuit (PIC) chips and an extern |
June 6, 2006 |
| A C- and/or L-band booster optical amplifier is utilized in an optical communication system at the output of one or more semiconductor transmitter photonic integrated circuit (TxPIC) chips or the optical combined outputs of multiple semiconductor transmitter photonic integrated circu |
| 7046430 |
Optical transmission systems including signal varying devices and methods |
May 16, 2006 |
| Optical systems of the present invention include a plurality of optical processing nodes in optical communication via a plurality of signal varying devices. A first signal varying device includes an optical fiber configured to produce Raman scattering/gain in a signal wavelength range |
| 7010185 |
Method of providing a low cost semiconductor transmitter photonic integrated circuit (TxPIC) chi |
March 7, 2006 |
| A method of deploying a passive optical combiner that is a broad bandwidth spectral wavelength combiner for combining the outputs from multiples transmitter photonic integrated circuit (TxPIC) chips and, thereafter, the amplification of the combined channel signals with a booster optical |
| 6775056 |
Optical transmission systems including signal varying devices and methods |
August 10, 2004 |
| Optical systems of the present invention include a plurality of optical processing nodes in optical communication via a plurality of signal varying devices. A first signal varying device includes an optical fiber configured to produce Raman scattering/gain in a signal wavelength range |
