Oclaro Technology Limited Patent applications |
Patent application number | Title | Published |
20150293426 | Optical Modulator - The invention relates to a folded Mach-Zehnder modulator. The modulator may comprise a beam splitter configured to split an input light beam into a plurality of light beams. The modulator may comprise a plurality of Mach-Zehnder devices configured to receive one or more of the plurality of light beams. The modulator may comprise a U-turn section configured to receive light beams from the Mach-Zehnder devices and to change the direction of the light beams by substantially 180 degrees. The modulator may comprise a polarisation management section configured to combine light beams received from the U-turn section and to output a polarisation multiplexed phase modulated light beam. | 10-15-2015 |
20140308001 | Optical Fibre and Method of Fabricating a Coupling Device Therefor - The present invention discloses an optical fibre ( | 10-16-2014 |
20130343757 | Optical Path Switching - A light source package is disclosed for a Raman amplifier node having a primary optical fibre for carrying an optical signal and a secondary optical fibre for carrying the optical signal when the signal is rerouted from the primary optical fibre. The light source package includes a primary light source for emitting light into the primary optical fibre when the optical signal is carried by the primary optical fibre to induce Raman gain of the optical signal, and a secondary light source for emitting light into the secondary optical fibre when the optical signal is carried by the secondary optical fibre to induce Raman gain of the optical signal. | 12-26-2013 |
20130306848 | Assembly for Monitoring Output Characteristics of a Modulator - A photonic assembly is described. The assembly comprises a substrate. An optical modulator ( | 11-21-2013 |
20130265634 | Raman Amplifiers - A pump unit ( | 10-10-2013 |
20130250981 | Array Comprising a Plurality of Adjustable Optical Devices - An adjustable array includes a plurality of optical devices. Each adjustable array device has an optical light output therefrom and is configured whereby the corresponding optical lights of the plurality of optical devices have a predefined nonequivalent relationship relative to one another with respect to an output parameter. In response to a drive signal, the plurality of optical devices are further configured to adjust the corresponding optical lights with respect to the output parameter while substantially maintaining the predefined nonequivalent relationship. | 09-26-2013 |
20130223790 | Optical Waveguide Arrangements Comprising An Auxiliary Waveguide - Like Structure - An optical waveguide arrangement is provided which comprises an active ridge waveguide structure | 08-29-2013 |
20130202243 | Electro-optic Devices - An electro-optic device | 08-08-2013 |
20130182731 | Fast Wavelength Switching - There is described a laser assembly for providing light at a switchable output wavelength. The assembly comprises first and second tuneable lasers, each configurable to emit light at a laser wavelength chosen from a range of wavelengths. Light is transmitted from the first laser while the second laser is retuned to change the chosen laser wavelength thereof. Each laser comprises one or more thermally sensitive control components for controlling the operation of the laser and an additional component electrode located adjacent to at least one of the one or more control components. The laser is configured so that the sum of electrical currents supplied to each control component and its corresponding additional component remains substantially constant in use. | 07-18-2013 |
20130170828 | Monitoring and Controlling Optical Nodes - A method and apparatus for monitoring and controlling an optical node | 07-04-2013 |
20130120831 | OPTICAL AMPLIFIERS - An optical amplifier system is provided which comprises first and second optical amplifiers ( | 05-16-2013 |
20130114629 | ENCLOSURE FOR A LASER PACKAGE - An enclosure for a laser package the enclosure being configured to receive a laser component within the enclosure, and further configured to receive for a driver integrated circuit (IC) ( | 05-09-2013 |
20130034328 | REDUCED LENGTH OPTOELECTRONIC DEVICES - There is described an optoelectronic device having a housing and a chip housed by the housing. At least a portion of the chip protrudes through an aperture in a wall of the housing. There is further provided an optoelectronic module comprising such an optoelectronic device and electronic control circuitry adapted to control the operation of the optoelectronic device. | 02-07-2013 |
20130028556 | WAVELENGTH SELECTIVE SWITCH WITH MULTIPLE INPUT/OUTPUT PORTS - A multi-port wavelength selective switch includes a one dimensional array of input and output ports. The multi-port wavelength selective switch further includes a wavelength dispersive element configured to receive input optical signals from the input ports, and to disperse wavelength components thereof. Additionally, the multi-port wavelength selective switch includes an array of beam steering devices. Each beam steering device is controllable to a position at which the beam steering device directs a wavelength component of an input optical signal received through a first input port to an output port and directs the same wavelength component of an input optical signal received through a second input port away from all of the output ports. | 01-31-2013 |
20130022306 | GAIN CONTROL FOR AN OPTICAL MODULATOR - There is described an optical modulation system for transmitting modulated optical light. The system comprises an electro-optic modulator having at least two arms through which light is transmitted and an imbalance electrode located on at least one arm. A current source is configured to inject current into the imbalance electrode for modifying the phase of light passing through the arm. A dither generator is configured to modulate the injected current, or bias voltage applied to at least one of the arms, with a dither signal. A phase sensitive detector is configured to detect an error in the phase of light emitted by the modulator. An operating point controller is configured to monitor the detected phase error and adjust the current injected into the imbalance arm so as to compensate for the detected error and thereby control an operating point of the modulator. | 01-24-2013 |
20120294622 | ALIGNMENT OF A DATA SIGNAL TO AN ALIGNMENT SIGNAL - The present invention provides a method and apparatus for phase aligning two optical signals within an optical transmitter to each other (and, in some embodiments, to a pulse carved optical signal) using integrated complimentary taps and a dither signal. The phase of a first signal may be intentionally offset relative to the phase of a second signal. Based on the offset, a correction factor may be calculated. The correction factor may be used to shift the phase of the first signal and/or the second signal in order to generally align the signals. This procedure may be automatically performed in a feedback loop to cause the signals to come into alignment and maintain the alignment of the signals during operation of the transmitter. | 11-22-2012 |
20110176572 | VCSEL WITH NON-CIRCULAR MESA AND CURRENT CONFINEMENT APERTURE FOR HIGHER-ORDER LATERAL MODE EMISSION - A vertical cavity surface emitting laser (VCSEL) ( | 07-21-2011 |
20110069727 | BRAGG GRATING STRUCTURE - A Bragg grating has a local reflection strength which varies with position along the length of the grating so as to generate a non-uniform wavelength reflection spectrum, enabling compensation for a non-uniform gain profile of the gain section of a tunable laser. In another aspect, a Bragg comb grating is modulated by an envelope function which can also compensate for a non-uniform gain profile. The comb grating may be a phase change grating, with the envelope function shape being controlled by the length between phase changes and/or size of the phase changes. | 03-24-2011 |