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Single Pass SFG Fiber Laser
Erbium group offers a single pass SFG fiber laser (FL-SSFG), which uses ultra-narrow linewidth fiber DFB laser as seeds, all fiber amplifiers to boost the output power and single pass PPLN SFG module to get high power 6xx nm laser output. The SFG fiber laser could cover the output wavelengths from 611 to 655 nm, with narrower linewidth (less than 10 kHz in 100 us integration time) and excellent beam quality (M² <1.1). It remains mode-hopping-free and stable under wide temperature variation and high mechanical vibration, which is great for frequency locking.
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The Integrated Frequency Stabilization Controller
For some practical cold atom physics instruments, transportability is the basic requirement.
For portable laser frequency stabilization systems,Erbium group has developed integrated laser frequency stabilization controller. The frequency stabilization optical path and locking controller are integrated in the controller. The laser frequency can be stabilized by simply input the laser through a fiber.
Integrated frequency stabilized controller can be installed in two sets of frequency locking optical path and locking controller. With different combinations of Preci-Lock and Preci-Beat, the integrated controller can have different functions for dual-channels laser. Users can freely choose the type of the controller according to the demand.
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Ultra-stable Picosecond Fiber Laser
● High power ultrafast laser seed source
● Super fast imaging
● Precision measurement
● Optical frequency comb
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390 nm narrow linewidth frequency doubling fiber laser
Erbium group develops the narrow, non mode hopping, high power 390 nm laser series (EFA-FHG-390). EFA-FHG-390 series use 1560 nm fiber DFB laser with kHz linewidth as seed source. All-fiber amplifier amplifies the laser power. 390 nm laser is obtained through frequency doubling of periodic polarization crystal and frequency converted scheme of cascade resonant frequency doubling. Compared with the diode lasers, the EFA-FHG-390 series has the characteristics of narrow laser linewidth (Lorentz line width <50 kHz), no mode jump under a large range of temperature and vibration conditions, better laser beam quality (M² <1.3), and large output power.
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Single Pass DFG Fiber Laser
Erbium group offers a single pass SDFG fiber laser (FL-SDFG), which uses ultra narrow linewidth fiber DFB laser as seeds, all fiber amplifiers to boost the output power and single pass PPLN DFG module to get high power mid-infrared laser output. The DFG fiber laser could cover the output wavelengths from 2400 to 4000 nm, with narrow linewidth (less than 200 kHz in 100 us integration time) and excellent beam quality (M² <1.1). It remains mode-hopping-free and stable under wide temperature variation and high mechanical vibration, which is great for frequency locking.
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High power single frequency Yb-doped fiber laser
Erbium group offers a 1010-1120 nm Ytterbium-doped fiber amplifier with innovative ASE suppression technology. Maximum output power reaches up to 130 W for a single-frequency operation. The lasers have ultra-low intensity noise, which makes them ideal light sources for the applications like optical lattice and laser atoms cooling. The full protection system of the laser ensures long-term free of maintenance and long life time.
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Photonic Crystal Fiber
Our polarization-maintaining single-mode fibers, which are optimized to exhibit low loss while keeping an almost constant mode field diameter.
The fiber is endlessly single-mode (i.e. it has no higher order mode cut-off) and delivers excellent mode quality at all wavelengths.
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High power single frequency Er-doped fiber laser
The erbium-doped single-frequency fiber amplifier can be divided into two versions according to different output power. The low-power version has a maximum output power of 15W with extremely low noise and RIN below -140 dBc/Hz (100 kHz).
The high power version has a maximum output of 40W. It can be used for remote interferometry, coherent communication, and atomic physics after frequency doubling. The amplifier remains modehopping-free and stable under wide temperature variation and high mechanical vibration, which is great for frequency locking. The fiber laser is an optimal solution for applications in outdoor harsh conditions.
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Frequency hopping 589 nm fiber frequency doubling laser
A fast frequency hopping Raman fiber single-pass frequency doubling laser (RFA-SSHGJF) was developed by Erbium group to meet the demand of sodium lidar for frequency converted of 589 nm laser. Adopting ultra-narrow linewidth ECDL as seed source, Utilizing high speed modulator for frequency hopping, adopting all-fiber Raman amplifier for enhancing laser power and single passing periodic polarization crystal, Erbium group obtains the high power frequency doubling laser with frequency hopping. This product can achieve two 589 nm laser outputs. One is used to lock the laser to the sodium atomic absorption line at a constant frequency. The other laser support f+ 630MHz, F +0 MHz, F-630mhz fast switching. The laser power can reach more than 1.8 W, which perfectly matches the demand of sodium lidar seed source.
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External Resonant SHG Fiber Laser
Erbium group offers external resonant SHG fiber laser FL-RSHG, which uses ultra-narrow linewidth fiber DFB laser as seed, all fiber amplifiers to boost the output power and external resonant SHG cavity to get high power visible or UV lasers. The output laser wavelengths cover from 253 to 795 nm with a SHG efficiency of up to 80% and output power of up to 30W. The product has the properties of high output power, optional narrower linewidth (less than 20 kHz in 100 us integration time), tunable and optional low relative intensity noise.
