A miniaturized BOSA with a stabilized light source for fiber-optic gyroscope
A novel design of bi-directional optical sub-assembly (BOSA) for fiber optic gyroscope (FOG) applications to improve the drawbacks of bulky discrete components, and time consuming optical fiber splicing has been proposed. This FOG BOSA integrated a 1550nm super-luminescent light emitting diode (SLED...
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creator | Tien-Tsorng Shih Chih-Wei Yu Ren-Young Liu Hao-Chi Chang Huang, O. Wang, J. Wood-Hi Cheng |
description | A novel design of bi-directional optical sub-assembly (BOSA) for fiber optic gyroscope (FOG) applications to improve the drawbacks of bulky discrete components, and time consuming optical fiber splicing has been proposed. This FOG BOSA integrated a 1550nm super-luminescent light emitting diode (SLED), a photodiode (PD), a 50/50 splitter, a dual-stage optical isolator, a fiber receptacle, and especially, a thermal electric cooler (TEC) in a volume less than 1.5cm in diameter and 2.5cm in height. A three dimensional model was established to simulate the thermal distribution and to optimize the thermal performance of the FOG BOSA. By using the laser welding process, a compact and robust FOG BOSA has been built. For the range beyond the 38°C TEC set point, such as +42 to +72°C, BOSA reached a peak-to-peak wavelength stability of 0.15nm which corresponding to a less than 100ppm peak-to-peak variation. |
doi_str_mv | 10.1109/OECC.2012.6276749 |
format | Conference Proceeding |
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language | eng |
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source | IEEE Electronic Library (IEL) Conference Proceedings |
subjects | Optical device fabrication Optical fiber communication Optical fiber couplers Optical fiber sensors |
title | A miniaturized BOSA with a stabilized light source for fiber-optic gyroscope |
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