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FOG optical module is a modular component of Fiber Coil + MIOC designed for fiber optic gyros. The fiber coil and MIOC are spliced together and integrated in a shell. The FOG optical module can be treated as an independent integrated sensing component, which has electrical interface and single-mode tail fiber. When using the FOG optical module, it is only need to connect electrical interface with the signal processing circuit and splice the single-mode fiber pigtail with PIN-FET through single-mode fiber fusion splicer, and the users no longer need expensive PM fiber fusion splicer to splice PM fibers of fiber coil and MIOC.
Technical Specification
FOG Optical Module | ||||
Type | OM60 | OM70 | OM98 | OM120 |
Size | Φ60*19mm | Φ70*24mm | Φ98*27mm | Φ120*26mm |
Working Wavelength | 1310nm | 1310nm | 1550nm | 1550nm |
Fiber Coil Length | 500m | 550m | 1460m | 2220m |
MIOC Half-wave Voltage | ≤3.5V | ≤3.5V | ≤3.5V | ≤3.5V |
FOG Target Precision | 0.1°/h (10s avg.) | 0.05°/h (10s avg.) | 0.015°/h (10s avg.) | 0.003°/h (100s avg.) |
Bias Peak-to-Peak Value | 1°/h | 0.8°/h | 0.2°/h | 0.1°/h |
Magnetic Sensitivity | 0.1°/h/Gs | 0.02°/h/Gs | 0.02°/h/Gs | 0.02°/h/Gs |
Working Temperature | -45 ~ +70℃ |
Key Features
High stability of output optical power
High stability of wavelength
Gaussian spectrum
High reliability and temperature adaptability
Application
Fiber optic gyroscope