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Single‐longitudinal‐mode CW laser

A solid-state single-longitudinal-mode (SLM) laser excites only one oscillation

产品介绍

A solid-state single-longitudinal-mode (SLM) laser excites only one oscillation mode in the resonator, producing a single frequency and single spatial mode. The output meets both single transverse mode (TEM00, Gaussian beam profile) and single longitudinal mode (only one longitudinal mode—i.e. one frequency—oscillates in the cavity). With an ultra-narrow linewidth, excellent power stability, and outstanding coherence, monochromaticity, and beam directionality, SLM lasers are ideal for Raman spectroscopy, interferometry, photodetection, fluorescence excitation, confocal microscopy, and other optical measurements in universities and research institutes.            

Single-Longitudinal-Mode CW Laser

The PLCTS Single-Longitudinal-Mode CW Laser operates in CW mode with a TEM00 transverse mode. Compact and robust, it offers superior coherence, directionality, and monochromaticity. Four center wavelengths—532 nm, 671 nm, 780 nm, and 1064 nm—are available. With an ultra-narrow linewidth and excellent power stability, the PLCTS series can be customized for wavelength, power, and other specifications, making it an ideal choice for university labs and research institutes.

Key Features of the SLM CW Laser:

  • ● High stability, clean beam profile, low noise

  • ● Transverse mode: TEM00; Longitudinal mode: SLM

  • ● Low beam divergence, excellent coherence, long lifetime

  • ● Ideal for Raman spectroscopy, interferometry, confocal microscopy, DNA sequencing, etc.

SLM CW Laser Product Image:

Single-Longitudinal-Mode CW Laser


SLM CW Laser Model Selection:

ParameterPSL473-50PSL532-50PSL671-50PSL1064-50
Operating Wavelength473 ± 1 nm532 ± 1 nm671 ± 1 nm1064 ± 1 nm
Output Power50 mW50 mW50 mW50 mW
Power Stability< 1.0 %< 1.0 %< 1.0 %< 1.0 %
Operating ModeCW
Transverse ModeTEM00TEM00TEM00TEM00
Longitudinal ModeSingleSingleSingleSingle
Coherence Length> 50 m> 50 m> 50 m> 50 m
Spectral Linewidth< 0.00001 nm< 0.00001 nm< 0.00001 nm< 0.00001 nm
Beam Diameter (1/e²)< 1.0 mm< 1.0 mm< 1.0 mm< 1.0 ± 0.05 mm
Divergence< 1.5 mrad< 1.5 mrad< 1.5 mrad< 1.7 mrad
Polarization Ratio> 100 : 1> 100 : 1> 100 : 1> 100 : 1
Dimensions (L × W × H)142.5 × 60 × 50 mm³142.5 × 60 × 50 mm³142.5 × 60 × 50 mm³100 × 40 × 40 mm³
Weight0.36 kg0.36 kg0.36 kg0.36 kg
Operating Temperature10 – 35 °C10 – 35 °C10 – 35 °C10 – 35 °C
Lifetime10 000 h10 000 h10 000 h10 000 h

Single-Longitudinal-Mode CW Fiber Laser

The PLCTS Single-Longitudinal-Mode CW Fiber Laser operates in CW mode with a TEM00 beam. It features an ultra-narrow linewidth, low noise, no mode-hopping, and superb power stability in a compact footprint. Built-in seed options, tunability, seed power-loss protection, and tolerance to temperature extremes and vibration make it ideal for demanding environments.

Key Features of the SLM CW Fiber Laser:

  • ● Ultra-narrow linewidth, low noise, no mode-hopping, excellent power stability

  • ● Superior beam quality (M² < 1.2); transverse mode: TEM00

  • ● Output type: collimated

  • ● Applications: cold-atom physics, quantum optics, coherent precision metrology, Doppler wind sensing, LiDAR, etc.

SLM CW Fiber Laser Product Image:

Single-Frequency CW Fiber Laser


SLM CW Fiber Laser Model Selection:

ParameterSCFL-532-2SCFL-780-2SCFL-1064-5SCFL-1560-10
Operating Wavelength532 ± 1 nm780 ± 1 nm1064 ± 1 nm1560 ± 1 nm
Output Power1 W2 W5 W10 W
Seed Input Power> 10 mW> 10 mW> 10 mW> 10 mW
Laser Linewidth< 20 kHz< 20 kHz< 10 kHz< 10 kHz
Wavelength Tuning Range> 6 GHz> 10 GHz> 10 GHz> 10 GHz
Temperature Tuning Range0.3 nm0.3 nm0.3 nm0.3 nm
Operating ModeCW
Relative Intensity Noise< 0.03 %< 0.05 %< 0.03 %< 0.05 %
M² Factor< 1.2< 1.2< 1.2< 1.2
Polarization Ratio> 100 : 1> 100 : 1> 100 : 1> 100 : 1
Power Stability< 0.3 %< 0.5 %< 0.5 %< 0.5 %
Beam Diameter (1/e²)1 ± 0.2 mm1 ± 0.2 mm1 ± 0.2 mm1 ± 0.2 mm
Cooling MethodAir (Water) coolingAir (Water) coolingAir (Water) coolingAir (Water) cooling
Power Supply100 – 240 V AC
Output TypeCollimated output

For detailed specifications or to place an order, visit SpectraQuant Mall:    Single-Longitudinal-Mode CW Laser

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