Fiber Interferometer
3 components
Fiber Coupled 90° Optical Hybrid
The FCOH is a passive, micro-optics-based 90° optical hybrid designed for coherent optical signal demodulation, including BPSK and QPSK formats. It functions by mixing the incoming signal (S) with a local oscillator reference signal (L), generating four optical outputs corresponding to the vector sums and differences of the two inputs: S+L, S−L, S+jL, and S−jL. These outputs represent four quadrature states in the complex optical field space. The signals are then directed to two pairs of balanced photodetectors, enabling differential detection of the in-phase (I) and quadrature (Q) components. This configuration allows the extraction of both amplitude and relative phase information through digital signal processing.
TypeWavelengthVersionFiber Cover1 datasheet
Scanning Fiber Mach-Zehnder Interferometer
The MAIM Series Scanning Fiber Optical Mach-Zehnder Interferometer splits incoming light into two paths using a fiber coupler—one reference arm with a fixed fiber length and the other sample arm with a variable length controlled by either a high-speed piezoelectric fiber stretcher or a motor-driven long range delay line. The two beams are is recombined using a second fiber coupler to produce an interference pattern for high-precision measurements. Fast scanning is achieved via the piezoelectric stretcher driven through a front-panel BNC input, while extended-range scanning is enabled by a motorized stage controlled via USB/GUI. Designed for operation across 500 to 2600 nm with matched single-mode fibers, each MAIM unit features a “zero meter” path mismatch baseline, allowing flexible delay customization.
ConfigurationWavelengthVariable RangeFix Range1 datasheetScanning Fiber Michelson Interferometer
The MIIM Series Scanning Fiber Optical Michelson Interferometer splits incoming light into two paths using a fiber optic coupler—one reference arm with a fixed fiber length and the other sample arm with a variable length controlled by either a high-speed piezoelectric fiber stretcher or a motor-driven long range delay line. Light reflected from the two fiber reflectors is recombined to produce an interference pattern for high-precision measurements. Fast scanning is achieved via the piezoelectric stretcher driven through a front-panel BNC input, while extended-range scanning is enabled by a motorized stage controlled via USB/GUI. Designed for operation across 500 to 2600 nm with matched single-mode fibers, each MIIM unit features a “zero meter” path mismatch baseline, allowing flexible delay customization.
TypeWavelengthVariable RangeFix Range1 datasheet