Buying Narrow-linewidth Lasers

Exail’s single-frequency fiber lasers are based on UV Bragg grating technology applied to active rare-earth photosensitive fibers. The ultra-short cavity and the phase-shifted design permit ultra-narrow linewidth and robust mode-hop-free laser operation, ideal for various sensor applications (1.5 and 2 µm available upon request).

Benefits and features:

• wavelength range 1530 – 1565 nm and 2 µm
• output power: >10 mW (> 10 µW for low noise version)
• single longitudinal mode, mode-hop-free
• narrow linewidth, low phase noise, SMSR >50 dB
• linear polarization, PM available
• WDM compatible
• low optical feedback sensitivity
• 125 or 80 μm clad diameter

Fully automated ultrafast tunable laser systems

The Stuttgart Instruments (SI) Piano Laser System is a narrowband very precise infrared light source for a wide range of analytical applications in spectroscopy and microscopy to study the chemical and structural composition and behavior of materials on the nanoscale. In this context, the SI Piano is characterized by its outstanding precision, spectral flexibility and unbeatable reproducibility; packaged in a compact and comparably low-cost design. This enables new research approaches for the materials of the future, and also achieves transmission from science to industry

Laser Diodes. Redefined.

Eblana Photonics’ EP1550-0-NLW Series laser diodes have advanced capabilities with extremely narrow linewidths in comparison to equivalent DFB devices. This laser has a free running linewidth of 100 kHz or less, in a monolithic chip with no external cavity or other linewidth narrowing structures. Eblana’s patented Discrete-Mode technology allows for narrow linewidth laser diode designs at low operating currents.

CNI offers narrow-linewidth diode lasers with the characteristic of ultra narrow spectral linewidth <0.03 nm, ideal for applications like DNA sequencing, flow cytometry, digital imaging, analytical chemistry, particle measurement, confocal microscopy, Raman spectroscopy and many other fields.

Helping Engineers and Scientists in Advancing How the World Communicates, Senses and Connects

See us at OFC 2025 in San Francisco, April 1–3 (booth 5445)!

Introducing our CoBrite tunable narrow linewidth laser ecosystem for 1515 nm to 1625 nm. Designed with simplicity and versatility in mind, CoBrite offers multiple chassis options and laser variants, making it an essential tool for researchers in the lab and on the production floor. With tunability options in the C-band, L-band, or C+L band, from a single source or in configurations of more than 100 ports, there's a CoBrite configuration to suit virtually every application. We keep expanding the CoBrite ecosystem to address new applications and market requirements when they arise.

The specialist in laser technologies

With the CVFL, CYFL and CEFL kilo models, Lumibird offers CW fiber lasers with very narrow linewidth down to 1 kHz. These single frequency lasers emits at 1054/1083 nm for the ytterbium version, in the 1.5-µm range for the erbium version and at frequency converted wavelengths for the CVFL model. These lasers are specifically designed for applications which require high precision such as LIDAR, atomic spectroscopy, or atom cooling.

Specialist in Special Optical Devices

CSRayzer provides narrow linewidth laser diode modules, or narrow linewidth lasers, with different grades of linewidth: 200 kHz, 100 kHz or 3 kHz.

Tune your wavelength

Titan is a continuous-wave (CW) broadly tunable laser system provided by Radiantis. With high average power (>5 W), this laser system offers tuning across 1450 – 4000 nm with linewidths of the order of 30 MHz (depending on the wavelength). Wavelength tuning is automated.

See us at OFC 2025 in San Francisco, April 1–3 (booth 6347)!

O/E Land offers the OEFLS-NL-100 single-frequency fiber laser, emitting at 1520–1580 nm with <5 kHz linewidth. You can get 20 mW or even >50 mW output power.

Innovative and Reliable

AdValue Photonics has the AP-SF single-frequency fiber laser emitting in the 2-μm wavelength region with a linewidth around 10 kHz. The AP-SF1 is an amplified version with 5 W output power. Both come with a turn-key benchtop housing.

Test. Measure. Solve.

See us at OFC 2025 in San Francisco, April 1–3 (booth 5523)!

Quantifi Photonics' Laser 1000 Series is a fully-compliant micro-ITLA laser with up to four channels in a compact benchtop or PXI form factor. It offers 0.01 pm resolution tunability across C or L bands, exceptional power accuracy up to 16.5 dBm, and optional dither suppression. It is a versatile and cost-effective general-purpose instrument.

The Future Depends on Optics

See us at OPIE 25 in Pacifico Yokohama, Japan, April 23–25 (booth F-32), SPIE Defense + Commercial Sensing in Orlando (FL), USA, April 13–17 (booth 917), CLEO 25 in Long Beach (CA), USA, May 4–9 (booth 317), Automate 25 in Detroit (MI), USA, May 12–15 (booth 4400) and SPS Italia in Parma, Italy, May 13–15 (hall 5, booth 055)!

Edmund Optics offers narrow-linewidth lasers, e.g. in the form of metrology lasers with ±0.002 nm wavelength stability.

Sacher Lasertechnik offers single-mode narrow-linewidth distributed feedback lasers emitting between 760 nm and 2800 nm. Free space and fiber-pigtailed versions available.

all wavelengths.

All of TOPTICA’s tunable diode lasers offer a narrow linewidth of typically 100 kHz, corresponding to coherence lengths of almost 1 km. By stabilizing these lasers even further with TOPTICA’s locking electronics, linewidths below 1 Hz are possible.

Solutions for Innovators

See us at OFC 2025 in San Francisco, April 1–3 (booth 5010)!

Koheras single-frequency fiber lasers are longitudinally single-mode and offer extremely low phase and intensity noise levels. Available in the erbium, ytterbium, or thulium wavelength ranges and with frequency-conversion to many other bands. Reliability is our highest priority. The all-fiber DFB design ensures robust and reliable operation for thousands of hours, prioritizing reliability. Koheras lasers are highly stable and mode-hop-free, even under changing environmental conditions. We also offer shot-noise-limited lasers for applications requiring exceptionally low-intensity noise.

Pioneering Photonics

Alpes Lasers offers single-mode, narrow-linewidth tuneable DFB lasers with wavelengths from 4 to 14 μm and powers up to hundreds of milliwatts. In CW mode, our DFBs will typically exhibit linewidths on the order of MHz.

Lasers, Optics, Electronics. Made in Germany.

Lasers with intracavity spectral selecting components which generate narrow linewidth laser radiation are offered by ALPHALAS. Special configurations deliver a single longitudinal mode (single frequency) at the standard laser wavelengths like 1030 nm, 1053 nm, 1064 nm as well as customer-specific wavelengths. In addition, nonplanar ring oscillators (NPRO) generate single-frequency laser radiation at 1064 nm with powers up to 100 mW that can be boosted up to 10 W in a MOPA configuration.

Injection-seeded high-power Q-switched lasers of the series PULSELAS-A-SF deliver single-frequency, 10 ns long pulses with up to 10 W average power at 10 kHz repetition rate.

The lasers you need. From the people you trust. Our experience, your advantage.

Serving North America, RPMC Lasers offers versatile narrow linewidth lasers from UV to LWIR (≈263 nm – 17 µm), with outputs up to ≈400 W. Single- and multimode options span free-space, fiber-coupled, OEM, and turnkey solutions for diverse needs.

Delivering exceptional precision, these lasers provide stable, single-frequency light with high spectral purity and low noise, perfect for spectroscopy, gas sensing, and interferometry requiring accurate, reliable data.

Advanced stabilization in DFB and VBG diodes, CW fiber, pulsed DPSS, and HeNe designs ensures narrow linewidth and long-term stability for atomic clocks and sensitive measurements, with wavelength, temperature, and current control.

Let RPMC help you find the right narrow linewidth laser today!

Helping our customers reach their research @ commercial goals for over 45 years

See us at OFC 2025 in San Francisco, April 1–3 (booth 2743)!

MPBC’s narrow linewidth lasers provide precise and stable output in the visible and NIR wavelength ranges for applications in medical diagnostics, imaging and advanced technologies.

Visible and NIR CW lasers are offered with 100 pm linewidth and a diffraction-limited beam.

• The visible wavelength range covers 465 to 775 nm and provides up to 5 W of output power at selected wavelengths.
• The NIR wavelength range covers 930 to 2000 nm with a fiber-coupled output power up to 100 W.

MPBC also provides single-frequency (SF) Seed fiber lasers with a linewidth < 50 kHz, and SF lasers with a linewidth < 100 kHz.

• The SF Seed wavelength range covers 910 to 1950 nm and provides up to 50 mW of output power at selected wavelengths.
• The SF Visible wavelength range covers 460 to 790 nm and provides up to 5 W of output power at selected wavelengths. Higher powers up to 10 W are available from 532 to 671 nm.
• The NIR SF wavelength range covers 920 to 1900 nm with a fiber-coupled output power up to 30 W.

Precision in photonics. Together we shape a sustainable future.

See us at OFC 2025 in San Francisco, April 1–3 (booth 6283)!

Menlo Systems offers ultrastable, frequency stabilized lasers at basically any wavelength. We supply fully characterized systems with linewidths below 1 Hz and Allan deviations of 2 · 10⁻¹⁵ (in 1 s) as well as modules and components allowing for state-of-the-art systems tailored to your requirements.

THINKING BEYOND

TOPTICA EAGLEYARD offers many lasers with very narrow linewidth, e.g. the miniECL with a typical linewidth of 100 kHz. You can find more information using the product finder on www.toptica-eagleyard.com or go direktly to the miniECL or DFB portfolio.

HÜBNER Photonics offer narrow-linewidth lasers in the Cobolt 08-01 Series. All lasers in the 08-01 Series are either frequency stabilized diode lasers or single longitudinal mode diode-pumped solid-state lasers with excellent noise and power stability. This product series is intended for applications like Raman spectroscopy.

SHIPS TODAY: AeroDIODE offers fiber-coupled DFB laser diodes (1030 nm, 1064 nm, 1310 nm, 1550 nm or many other devices with a wavelength between 1250 nm and 1650 nm). They are offered as stock items or associated with a CW laser diode driver or pulsed laser diode driver. They are compatible with our high speed nanosecond pulsed drivers or low noise laser diode driver for single frequency emission. Typical narrow linewidth of a few 10s kHz are obtained with our dedicated ultra-low noise driver.

See also our tutorial on Fiber coupled laser diodes.

High-power & single-frequency VECSELs at 350–2150 nm for quantum technology

VEXLUM lasers are designed for narrow-linewidth operation, utilizing an external cavity configuration with frequency-selecting elements such as a birefringent filter and etalon. These lasers offer:

• Narrow free-running linewidths: < 100 Hz (instantaneous), < 10 kHz (10 μs), < 100 kHz (100 μs)
• Virtually no amplified spontaneous emission (ASE) background (SNR > 70 dB) due to VECSEL technology.

Let the light be always with you!

Geola's Single Longitudinal Mode (SLM) lasers are available with:

• pulse energies from 2 mJ to 10 J
• pulse durations of 1 ns to 400 ns
• standard repetition rate – single shot to 50 Hz
• fundamental wavelength at either 1047, 1053, 1064, 1079, 1313, 1319, 1338 or 1342 nm