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780 nm and 1560 nm Femtosecond Fiber Lasers


  • Menlo Systems' Figure 9® Technology
  • Laser Output in Less than 60 Seconds
  • Highly Stable with Low Amplitude and Phase Noise
  • 780 nm or 1560 nm Output

C-FIBER-780

780 nm Femtosecond Fiber Laser

C-FIBER

1560 nm Femtosecond Fiber Laser

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Applications

C-FIBER and C-FIBER-HIGH-POWER Applications

  • Synchronization and Timing
  • High-Resolution Spectroscopy
  • Optical Tomography
  • Ultrafast Spectroscopy
  • Supercontinuum Generation
  • Material Characterization
  • Testing at Telecom Wavelengths

C-FIBER-780 and C-FIBER-780-HIGH-POWER Applications

  • Amplifier Seeding
  • THz Generation and THz Physics
  • 2-Photon Polymerization and 3D Printing
  • 2-Photon Excitation
  • Ultrafast Spectroscopy
  • Multi-Photon Excitation

Optional Packages

  • SYNC100 Repetition Rate Synchronization
    The SYNC100 allows for tuning of the cavity length by 330 kHz (full range). It includes a stepper motor and piezo setup integrated in the laser head. This option can not be retrofitted.
  • RRE-SYNCRO Repetition Rate Stabilization Electronics
    Feedback Electronics to Phase Lock Pulses to an External Clock
  • VARIO User-Defined Repetition Rate
    Factory-Set Value Selectable in the 50-100 MHz Range
  • MULTIBRANCH Additional Seed Ports
    Seeding of Multiple Amplifiers with Optional Subsequent Frequency Conversion to Cover Multiple Wavelengths

Features

  • High Stability with Low Amplitude and Phase Noise
  • All-PM Fiber Solutions
  • Single Mode-Lock State
  • Menlo Systems' Figure 9® Technology
  • Laser Output in Less than 60 Seconds
  • Repetition Rate from 50 MHz to 250 MHz
  • Excellent Price/Performance Ratio
  • Compact Design

Menlo Systems' fiber-based femtosecond laser sources integrate the latest achievements in fiber technology into easy-to-use products. Menlo Systems' unique Figure 9® cavity design results in reproducible and long-term stable operation. It is based on the well-established nonlinear optical loop mirror (NOLM) mode locking mechanism.

Both oscillator and amplifier use polarization maintaining (PM) fiber components only, ensuring excellent stability and low-noise operation. The laser is maintenance free, user installed, and ready to use at the press of a single button. Customize your laser with the available options, listed to the right, to match the requirements of your application.

Item # C-FIBER-780 C-FIBER-780-HIGH-POWER C-FIBER C-FIBER-HIGH-POWER
Center Wavelength 780 ± 10 nm 1560 ± 20 nm
Average Output Power >100 mW >180 mW >100 mW >380 mW
Pulse Energy >1.0 nJ >1.8 nJ >1.0 nJ >3.8 nJ
Pulse Width <100 fs (<70 fs with FEMTOSCALE) <90 fs
Repetition Ratea 100 MHz (50-250 MHz with VARIO)
Repetition Rate Instability <1 ppm Over 20 Hours at Constant Temperature
Timing Jitter <2 fs (rms, 10 kHz, 10 MHz)
Output Port Free Space Fiber-Coupled (FC/APC) Free Space
Auxiliary Output Portb Free Space,
1560 nm, >250 mW
Free Space,
1560 nm, >380 mW
- -
Additional Fiber-
Coupled Seed Port
1 (up to 4 with MULTIBRANCH) - -
Polarization Linear, S-Polarized Linear, PM Fiber Linear, S-Polarized
Beam Height 75 mm N/A 102 mm
  • Please inquire with Menlo Systems for your specific combinations of average power, pulse duration, and repetition rate.
  • User can switch between the 780 nm and 1560 nm ports.
Simon Kocur
Simon Kocur
Menlo Systems
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Please note that these femtosecond fiber lasers are available directly from Menlo Systems, Inc. within the United States and from Menlo Systems GmbH outside the United States.
United States
Phone: +1-973-300-4490
Email: ussales@menlosystems.com
Outside United States
Phone: +49-89-189166-0
Email: sales@menlosystems.com

Laser Safety and Classification

Safe practices and proper usage of safety equipment should be taken into consideration when operating lasers. The eye is susceptible to injury, even from very low levels of laser light. Thorlabs offers a range of laser safety accessories that can be used to reduce the risk of accidents or injuries. Laser emission in the visible and near infrared spectral ranges has the greatest potential for retinal injury, as the cornea and lens are transparent to those wavelengths, and the lens can focus the laser energy onto the retina. 

Laser Glasses Laser Curtains Blackout Materials
Enclosure Systems Laser Viewing Cards Alignment Tools
Shutter and Controllers Laser Safety Signs

Safe Practices and Light Safety Accessories

  • Thorlabs recommends the use of safety eyewear whenever working with laser beams with non-negligible powers (i.e., > Class 1) since metallic tools such as screwdrivers can accidentally redirect a beam.
  • Laser goggles designed for specific wavelengths should be clearly available near laser setups to protect the wearer from unintentional laser reflections.
  • Goggles are marked with the wavelength range over which protection is afforded and the minimum optical density within that range.
  • Laser Safety Curtains and Laser Safety Fabric shield other parts of the lab from high energy lasers.
  • Blackout Materials can prevent direct or reflected light from leaving the experimental setup area.
  • Thorlabs' Enclosure Systems can be used to contain optical setups to isolate or minimize laser hazards.
  • A fiber-pigtailed laser should always be turned off before connecting it to or disconnecting it from another fiber, especially when the laser is at power levels above 10 mW.
  • All beams should be terminated at the edge of the table, and laboratory doors should be closed whenever a laser is in use.
  • Do not place laser beams at eye level.
  • Carry out experiments on an optical table such that all laser beams travel horizontally.
  • Remove unnecessary reflective items such as reflective jewelry (e.g., rings, watches, etc.) while working near the beam path.
  • Be aware that lenses and other optical devices may reflect a portion of the incident beam from the front or rear surface.
  • Operate a laser at the minimum power necessary for any operation.
  • If possible, reduce the output power of a laser during alignment procedures.
  • Use beam shutters and filters to reduce the beam power.
  • Post appropriate warning signs or labels near laser setups or rooms.
  • Use a laser sign with a lightbox if operating Class 3R or 4 lasers (i.e., lasers requiring the use of a safety interlock).
  • Do not use Laser Viewing Cards in place of a proper Beam Trap.

 

Laser Classification

Lasers are categorized into different classes according to their ability to cause eye and other damage. The International Electrotechnical Commission (IEC) is a global organization that prepares and publishes international standards for all electrical, electronic, and related technologies. The IEC document 60825-1 outlines the safety of laser products. A description of each class of laser is given below:

Class Description Warning Label
1 This class of laser is safe under all conditions of normal use, including use with optical instruments for intrabeam viewing. Lasers in this class do not emit radiation at levels that may cause injury during normal operation, and therefore the maximum permissible exposure (MPE) cannot be exceeded. Class 1 lasers can also include enclosed, high-power lasers where exposure to the radiation is not possible without opening or shutting down the laser.  Class 1
1M Class 1M lasers are safe except when used in conjunction with optical components such as telescopes and microscopes. Lasers belonging to this class emit large-diameter or divergent beams, and the MPE cannot normally be exceeded unless focusing or imaging optics are used to narrow the beam. However, if the beam is refocused, the hazard may be increased and the class may be changed accordingly.  Class 1M
2 Class 2 lasers, which are limited to 1 mW of visible continuous-wave radiation, are safe because the blink reflex will limit the exposure in the eye to 0.25 seconds. This category only applies to visible radiation (400 - 700 nm).  Class 2
2M Because of the blink reflex, this class of laser is classified as safe as long as the beam is not viewed through optical instruments. This laser class also applies to larger-diameter or diverging laser beams.  Class 2M
3R Lasers in this class are considered safe as long as they are handled with restricted beam viewing. The MPE can be exceeded with this class of laser, however, this presents a low risk level to injury. Visible, continuous-wave lasers are limited to 5 mW of output power in this class.  Class 3R
3B Class 3B lasers are hazardous to the eye if exposed directly. However, diffuse reflections are not harmful. Safe handling of devices in this class includes wearing protective eyewear where direct viewing of the laser beam may occur. In addition, laser safety signs lightboxes should be used with lasers that require a safety interlock so that the laser cannot be used without the safety light turning on. Class-3B lasers must be equipped with a key switch and a safety interlock.  Class 3B
4 This class of laser may cause damage to the skin, and also to the eye, even from the viewing of diffuse reflections. These hazards may also apply to indirect or non-specular reflections of the beam, even from apparently matte surfaces. Great care must be taken when handling these lasers. They also represent a fire risk, because they may ignite combustible material. Class 4 lasers must be equipped with a key switch and a safety interlock.  Class 4
All class 2 lasers (and higher) must display, in addition to the corresponding sign above, this triangular warning sign  Warning Symbol

Posted Comments:
Hidetoshi Nakanishi  (posted 2019-06-19 15:09:17.82)
(株)SCREENホールディングスの中西英俊です。 価格などの情報も提供いただけると助かります。800nm程度の安価で高出力なfsレーザーを探しています。
YLohia  (posted 2019-06-19 08:33:10.0)
Hello, thank you for contacting Thorlabs. Our Technical Support team from Japan will reach out to you directly.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
C-FIBER-780 Support Documentation
C-FIBER-780Femtosecond Fiber Laser, 780 nm, >100 mW, Free-Space Output
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Menlo Lead Time
C-FIBER-780-HIGH-POWER Support Documentation
C-FIBER-780-HIGH-POWERFemtosecond Fiber Laser, 780 nm, >180 mW, Free-Space Output
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Menlo Lead Time
C-FIBER Support Documentation
C-FIBERFemtosecond Fiber Laser, 1560 nm, >100 mW, Fiber-Coupled Output
CALL
Menlo Lead Time
C-FIBER-HIGH-POWER Support Documentation
C-FIBER-HIGH-POWERFemtosecond Fiber Laser, 1560 nm, >380 mW, Free-Space Output
CALL
Menlo Lead Time
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