Changchun New Industries Optoelectronics Technology Co., Ltd.

Spectrum Analysis
Laser Application Systems
Laser Measurement & Safety
Laser Marking
Laboratory Instruments
Optics & Coatings
Components & Accessories
Fiber-Coupled LEDs
Customized Products
Diode Lasers
DPSS Lasers
Fiber Lasers
Multi-wavelength Lasers
High Stability Lasers
Low Noise Lasers
Single Frequency Lasers
Q-switched Lasers
Mode-locked Lasers
Wavelength-tunable Lasers
High Power Lasers
High Energy Lasers
Line Lasers
Fiber Coupling Lasers
OEM Lasers & Laser Modules
Components & Accessories
Laser Diode
Laser Optics
Fiber for Laser Coupling
Beam Expander
AOM and Shutter
Multi-function Optical System
Variable Attenuator
Laser Goggles


Customer Service
TTL or Analog Modulation
Fiber Coupling
Coating Service
Laser Marking Service
Complete Solution
Contact CNI
Tel: +86-431-85603799 / 89216078
国内: 0431-87020257 / 89216068
Fax:    +86-431-87020258
Single Longitudinal Mode (SLM) Laser

 Single Longitudinal Mode/ Single Frequency Laser


Raman spectrum
Precision measurement
Interference lithography
Atomic excitation/absorption

Longitudinal mode testing Coherent fringes of 532 nm laser  F-P etalon interference ring
 SLM Laser

CNI Laser manufactures compact diode-pumped solid-state (DPSS) single frequency/single longitudinal mode lasers with narrow linewidth (<10-6 nm) and long coherent length (>100 m). The laser operates in single longitudinal mode and TEM00 mode with low amplitude noise and high stability.

CNI can offer SLM laser in wavelengths (nm) of: 360 457 473 523.5 526.5 532 556 561 589 639 656 660 671 721 1047 1053 1064 1313 1319 1342

Another option of narrow linewidth laser which includes diode laser and DPSS laser. The linewidth of diode laser is <0.03nm, and <0.003nm for DPSS laser.

 Frequency Stabilized SLM Laser
In addition to narrow linewidth and long coherent length, the frequency stabilized SLM laser has the advantages of stable frequency and low frequency noise.

    • Frequency shift (8 hours): ±200MHz
    • Frequency shift with Temperature: <200MHz/℃

CNI can offer frequency stabilized SLM laser in wavelengths (nm) of: 360 457 473

532 556 561 639 656 660 671 721 1047 1053 1064 1313 1319 1342



 Modulated SLM Laser
Modulated single frequency laser has the advantages of quick modulation rate, high extinction ratio, and easy coding.

CNI can offer modulated SLM laser in wavelengths (nm) of: 473 532 556 561 671

   • Repetition rate: Up to 1MHz
   • TTL/ Analog modulation optional
   • Available for other wavelengths and frequency on customers' request.
 Customized System
We have designed some special wavelength SLM lasers, such as 670.776nm, 589.159nm, 589.756nm for our customers used for various applications. If you need help, please contact us without any hesitation.  
Addr: No.888 Jinhu Road High-tech Zone,Changchun 130103, P.R.China
Tel:+86-431-85603799     Fax:+86-431-87020258     E-mail: