1. External cavity semiconductor single frequency laser

This product is a semiconductor single frequency laser based on external cavity technology, with ultra-low relative intensity noise and phase noise, as well as ultra narrow linewidth and other characteristics. It can be applied in fields such as cold atom physics, laser sensing, laser ranging, and precision optical measurement.

The seed source in this external cavity semiconductor single frequency laser is prepared using a unique semiconductor gain chip, precise external cavity structure design, and advanced packaging technology. Combined with an ultra-low noise and wide tuning drive circuit, it can achieve stable single longitudinal mode operation, output linewidth<5kHz, temperature tuning range>12GHz, and fast current tuning range>0.5GHz single frequency laser.

2. High speed modulation pulse laser

This product is a pulse laser that generates pulsed light by high-speed modulation of a semiconductor laser based on the gain switching principle. It has advanced core specifications and rich configuration functions, which can meet diverse scientific research and application needs.
This product adopts a uniquely designed high-speed modulation circuit and semiconductor laser, which can generate pulsed light with GHz repetition rate and ps level. The laser supports both continuous and pulsed emission modes; Supports both internal and external triggering in pulse mode, and synchronous clock output in internal triggering mode; The width, repetition rate, and delay of pulsed light can be adjusted.
The width of pulsed light is the narrowest<50ps and the widest>500us; The repetition frequency can be adjusted within 1kHz~1.25GHz; Switch extinction>55dB, with high stability to adapt to environmental changes.

3. Frequency conversion pulse fiber laser

This product is a pulsed fiber laser based on periodically polarized lithium niobate (PPLN) frequency conversion device. The laser frequency can cover the ultraviolet and visible light bands, meeting the scientific research and application needs of fields such as atomic and molecular physics, biological measurement, laser ranging, and atmospheric lidar.
This product adopts a design structure of seed source, fiber amplifier, and frequency conversion device. By selecting different seed sources and fiber amplifiers, frequency conversion such as doubling, sum frequency, and difference frequency can be performed within the frequency conversion device to generate high single pulse energy lasers in the ultraviolet and visible light bands.
The maximum output single pulse energy is greater than 10u, and the width of the pulse light is the narrowest<100ps and the widest>500us; The repetition frequency can be adjusted within 1kHz~1.25GHz; The extinction ratio of the switch is greater than 50dB, with high stability to adapt to environmental changes.

4. Frequency conversion pulse fiber laser

This product is a single frequency fiber laser based on periodically polarized lithium niobate (PPLN) frequency conversion device. The laser frequency can cover the ultraviolet and visible light bands, meeting the research and application needs of fields such as atomic and molecular physics, biological measurement, and spectroscopic measurement. This product adopts a design structure of seed source+fiber amplifier+frequency conversion device. By selecting different seed sources and fiber amplifiers, frequency conversion such as doubling, sum frequency, and difference frequency can be performed within the frequency conversion device, which can generate high-power single frequency laser in the ultraviolet and visible light bands. The maximum output optical power can be>5W, and it has extremely low intensity noise, phase noise, and linewidth<10kHz. The temperature tuning range is>12GHz, and the fast current tuning range is>0.5GHz. The RMS power stability is<0.5% @ 10h.

5. Single frequency fiber amplifier/laser

This product is a continuous optical fiber amplifier/laser based on rare earth ion doped fiber. Under the premise of not deteriorating the laser characteristics of the seed source, optical power amplification can be achieved, which is widely used in frequency doubling fundamental frequency light sources, long-distance coherent communication, and spectral measurement.
This product adopts a design structure of a master oscillator and power amplifier (MOPA), and can achieve high-power laser output of different wavelengths by selecting different rare earth gain fibers (such as erbium, ytterbium, and thulium). The maximum output optical power can exceed 10W and has extremely low noise. Our company's semiconductor single frequency laser can be integrated to achieve high-power single frequency laser output. To meet the demand for power stability, a power stability feedback module is built-in in the optical link, which can achieve ultra-high stability with RMS power stability<0.5% @ 10h.

6. Pulse fiber amplifier/laser

This product is a pulse fiber amplifier/laser based on rare earth ion doped fiber, which can achieve optical power amplification without deteriorating the characteristics of the seed source laser. It is widely used in frequency doubling fundamental frequency light sources, laser ranging, and atmospheric lidar.
This product adopts a design structure of a master oscillator and power amplifier (MOPA), and can achieve high-energy pulse laser output of different wavelengths by selecting different rare earth gain fibers (such as erbium, ytterbium, and thulium). Among them, the main oscillator can be equipped with our high-speed modulation pulse laser, which can output excellent seed light performance. The power amplifier adopts a multi-stage amplification structure and ensures that the output single pulse energy is greater than 100u by suppressing the nonlinear effects of the fiber. To meet the demand for power stability, a power stability feedback module is built-in in the optical link, which can achieve ultra-high stability with RMS power stability<0.5% @ 10h.

7. Multi functional high-speed picosecond pulse light source

This product is a compact and multifunctional high-speed picosecond pulse light source with independent intellectual property rights. It has advanced core indicators and rich configuration functions, which can meet diverse scientific research and application needs.
The core function of this product is to provide a stable and reliable narrow pulse light source, supporting continuous and pulse lighting modes. Pulse mode supports internal and external triggering, with adjustable delay; Adjustable pulse width, ultra narrow pulse width up to 40ps, extinction ratio higher than 50dB; The pulse repetition frequency is adjustable, with a high frequency of up to 1.25GHz; The luminous power and average photon number per pulse can be adjusted within a range of 107, with high stability to adapt to environmental changes.

8. Long pulse single frequency fiber laser

This product is a modular long pulse single frequency fiber laser. The core components adopt domestically produced seed source semiconductor lasers and acousto-optic modulators with independent intellectual property rights. They operate in the safe wavelength range for human eyes (1550nm) and can generate ultra narrow linewidth, high pulse energy, and maximum emission limit light pulses. They are widely used in the field of long-distance radar detection.
The product adopts a design structure of master oscillator and power amplifier (MOPA). Among them, the main oscillator adopts external modulation technology of single frequency polarization maintaining semiconductor laser and cascaded acousto-optic modulator to generate light pulses with adjustable repetition frequency and pulse width. The power amplifier adopts a multi-stage amplification structure and suppresses the nonlinear effects of optical fibers to ensure that the output single pulse energy is greater than 110uJ and the narrow linewidth is less than 10kHz. The laser is a fully polarization maintaining structure that can achieve high polarization extinction ratio (PER) output.