The present disclosure provides an improved method of parking a microelectromechanical system (MEMS) mirror in an array of MEMS mirrors to protect against single high voltage channel failures in a driver. Two separate voltages are applied to each MEMS mirror to move and park the mirror out of a camera sensor field of view in a servo system. For example, a first voltage may be applied in a positive X direction and a second voltage may be applied in a positive Y direction which will move the mirror in a diagonal direction. If one of the high voltage channels fail, the mirror will still be parked and outside of the camera sensor field of view. If a high voltage channel fails, the servo system can park a mirror affected by the failure in an opposite corner. Moreover, if 2-axis parking is not feasible, the mirror can use single-voltage parking.

Laser apparatus (10) includes at least: a laser oscillator that emits laser light (LB); reflection mirrors (M1), (M2) that are disposed on an optical path of laser light (LB) and change the optical path; actuators (ACT1), (ACT2) that are respectively coupled to reflection mirrors (M1), (M2) and displace reflection mirrors (M1), (M2); optical axis deviation detector (16) that is disposed to surround the optical path of laser light (LB) and detects an optical axis deviation of laser light (LB); and a controller that drives actuators (ACT1), (ACT2) on the basis of a detection result of optical axis deviation detector (16) to displace reflection mirrors (M1), (M2) and correct the optical axis deviation of laser light (LB).

Integrated optical component combine the functions of a Variable Optical Attenuator (VOA), a tap coupler, and a photo-detector, reducing the size, cost, and complexity of these functions. In other embodiments, the integrated optical component combines the functions of an optical switch, a tap coupler, and a photo-detector. A rotatable mirror is used to adjust the coupling of light from an input port or ports to one or more output ports. A pin hole with a surrounding reflective surface is used at the core end face of one or more output fibers, such that a portion of the output optical signal is reflected to a photodiode chip. The photo-detector provides an indication of the optical power that is being coupled to the output fiber. With appropriate electronic control circuitry, the integrated optical component can be used to set the output optical power at a desired or required level.

Described are various configurations of reduced crosstalk optical switches. Various embodiments can reduce or entirely eliminate crosstalk using a coupler that has a power-splitting ratio that compensates for amplitude imbalance caused by phase modulator attenuation. Some embodiments implement a plurality of phase modulators and couplers as part of a dilated switch network to increase overall bandwidth and further reduce potential for crosstalk.

An optical interconnection system and method are provided. The system includes two or more basic components that are stacked and interconnected. The basic component includes an optical network layer and an electrical layer, where in each basic component, the optical network layer is electrically interconnected with the electrical layer, and the optical network layer of each basic component is optically interconnected with an optical network layer of an adjacent basic component, and through optical interconnection in three-dimensional space, a limitation on a quantity of stacked electrical layers is reduced, and efficiency of signal transmission is increased.

A wavelength selective switch (WSS) includes a liquid crystal on silicon (LCOS) panel and a fiber array with multiple ports. The two outermost ports of the multiple ports are a first port and a second port. An included angle between an intersecting line of the LCOS panel and a first plane in which the incident light entering the LCOS panel and emergent light exiting the LCOS panel are located, and incident light entering the LCOS panel is (90−θ) degrees, where a wavelength of the incident light is same as a wavelength of the emergent light, θ is less than 15 degrees, the first port and the included angle of (90−θ) degrees are located on a same side of the incident light, and the second port and the included angle of (90−θ) degrees are separately located on two sides of the incident light.

A 3D-MEMS optical switch is disclosed. In an embodiment, the 3D-MEMS optical switch includes a collimator array, a PD array, a wedge prism, a light-splitting triangular prism, a micro-electro-mechanical system MEMS micro-mirror, and a core optical switch controller that is connected to the PD array and the MEMS micro-mirror. In the present invention, the PD array is integrated into a core optical switch, which simplifies an architecture of the optical switch and reduces a volume of the optical switch; the wedge prism and the light-splitting triangular prism are used to perform light splitting, and some optical signals are transmitted to the PD array to detect optical power, so that the core optical switch controller adjusts the MEMS micro-mirror according to the optical power, which is detected by the PD array, of the optical signal, making an insertion loss of the 3D-MEMS optical switch meet a preset attenuation range.

An optical system capable of routing primary and secondary high power lasers through a blocking switch is described.

A bidirectional data communications cable is disclosed. The cable includes first connector, second connector, and cable housing coupled to the first and second connectors. The first connector includes a controller configured to determine whether the first connector is connected to a data source or data sink. If connected to a data source, the controller configures a switch circuit to route a data signal from the data source to an optical modulator for modulating an optical signal for transmission from the first to the second connector via an optical fiber. If connected to a data sink, the controller configures the switch circuit to route a data signal from an optical demodulator to the data sink, the optical demodulator receiving an optical signal modulated with the data signal from the second connector via an optical fiber. The second connector is configured similar to the first connector. The cable housing encloses the optical fibers.

Disclosed is an invention related to a wavelength selective switch for multiple units. The wavelength selective switch for multiple units according to the present invention comprises: multiple input/output port groups comprising multiple input/output port arrays for transmitting multiple light beams comprising multiple wavelength channels, respectively; a switching lens portion configured such that light beams output from respective input/output ports intersect on a switching axis; a first prism portion arranged between the multiple input/output port arrays and the switching lens portion and configured such that respective light beams groups output from the multiple input/output port arrays refract at different angles on the switching axis; a second prism portion arranged after the switching lens portion and configured such that a center line of a light beam group output from the switching lens portion is arranged in parallel with an optical axis; a light expansion portion for expanding the beam size of a light beam output from the second prism portion in a dispersion axis direction; a light splitting portion for splitting the light beam, the beam size of which has been expanded by the light expansion portion, at a different angle on the dispersion axis according to the wavelength component; an image lens portion for readjusting and focusing wavelengths split by the light splitting portion; and a switching portion comprising divided surfaces corresponding to the multiple input/output port groups, the switching portion being configured to change the angle of a selected wavelength on the switching axis such that a wavelength channels of an input port selected independently with regard to each group is transmitted to an output port selected independently.