Overview
The ASE broadband light source is a core broadband low-coherence optical device used in fiber optic gyroscopes (FOGs), fiber optic current transformers (FOCTs), and distributed fiber optic sensing systems. Through precision spectral shaping, closed-loop APC automatic power control, and PID precision temperature control, it delivers a Gaussian-like symmetrical broadband spectrum. This significantly reduces coherent noise in the sensing optical path, minimizes phase errors, and ensures high scale-factor stability and low bias drift in inertial sensing systems.
Manufactured with mature batch-production optical coupling processes and compact hermetic packaging, this product offers excellent full-temperature spectral stability, ultra-low spectral ripple, and extremely low full-temperature power fluctuation. It is available with SM (single-mode) or PM (polarization-maintaining) fiber pigtails. Its circular modular design allows easy integration into various sensing system frames, with strong environmental tolerance.
Applications
- High-precision fiber optic gyroscopes (FOG)
- Fiber optic current transformers (FOCT)
- Distributed fiber grating sensing systems
- Spectral testing and production calibration of passive optical components
- Optical coherence tomography (OCT) and laboratory broadband optical testing
- High-speed coherent optical communication systems
Product Features
- Excellent full-temperature power stability with minimal power fluctuation under high and low temperature environments
- Ultra-low spectral ripple with Gaussian-symmetric smooth spectrum, effectively suppressing coherent noise in gyroscopes
- Low full-temperature mean wavelength drift with excellent scale-factor temperature drift characteristics
- Built-in closed-loop APC power feedback and high-precision digital temperature control, ensuring high long-term stability at room temperature
- Wide operating and storage temperature ranges, resistant to thermal cycling, vibration, and shock, with high reliability
- Available with SM or PM fiber pigtails; compact modular package suitable for integration into gyroscopes
- Low degree of polarization (DOP) output, compatible with high-PM optical path systems
- Mature standardized manufacturing processes with good consistency, supporting high-volume orders
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