We are utilizing this for research and development related to next-generation communication technologies and quantum technologies [technical documentation available].
Frush generates a flat and stable optical frequency comb with a channel spacing (FSR) of 12-18 GHz. This characteristic allows for the extraction of two longitudinal modes from the optical spectrum, enabling the generation of millimeter-wave and terahertz wave signals in the frequency range of 12-200 GHz. Additionally, Frush can generate picosecond pulse light at a repetition frequency corresponding to the FSR, making it usable as an ultra-short pulse laser with a repetition frequency exceeding 12 GHz. It is widely used in research for next-generation communication and quantum computing technologies. <Features> ■ High Stability Achieves short warm-up time and high stability through a simple and robust configuration and a high-performance auto-bias controller. ■ Cost Optimization Contributes to cost reduction by utilizing existing equipment with a design that employs CW lasers and RF signal generators as external signal sources. ■ Customization Support Capable of system proposals ranging from the provision of signal sources and RF signal generators to broadband expansion and femtosecond short pulse generation.
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basic information
- Optical comb FSR: 12-18 GHz (fixed at shipment) - Center wavelength: 1550 ± 20 nm (dependent on input CW light source) - Optical bandwidth: > 200 GHz @ -20 dB - Optical average output: > -7 dBm (+13 dBm when optical input is applied) - Optical pulse width: ≦ 6 ps - Optical output port: FC/APC, PM1550 - Polarization: Linear polarization - Power supply voltage: 100 VAC - Dimensions: 148(H)×480(W)×430(D) mm The front panel of the chassis has one port for monitoring optical signals, and the rear panel has two ports for monitoring RF signals, allowing synchronization with measuring instruments. After amplifying the pulse-shaped optical frequency comb output from Frush to about +33 dBm using an optical fiber amplifier, it can be input into a highly nonlinear optical fiber to broaden the spectral width to several tens of nm through self-phase modulation.
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Applications/Examples of results
- Millimeter wave / THz wave oscillation and reception - Ultrafast spectroscopy / high-resolution spectroscopy - Optical communication - Gas sensing - LIDAR, three-dimensional shape measurement
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