FC1500-ULNplus
Optical Frequency Comb

FC1500 ULNplus 3w

Specifications

Advanced Features and Benefits

      • Comb Spacing 250 MHz
      • Accuracy 1 x 10-18 (τ >100 s)
      • Stability: 5 x 10-18 in 1 s, 5 x 10-19 in 1000 s
      • Operational Range from 500 nm to 2 μm
      • Integrated Phase Noise <80 mrad [1Hz - 2 MHz]
      • High Repetition Rate
      • High Bandwidth >1 MHz Actuators for CEO and Repetition Rate
      • Fully Fiber-coupled CEO Frequency Generation
      • Turnkey Metrology System. Fully automated, including data evaluation software, designed for continuous operation
FC1500-ULNplus
Comb Spacing 250 MHz
Accuracy 1 x 10-18 for τ > 100s*
Stability 5 x 10-18 in 1s*▴, 5 x 10-19 in 1000 s*▴
Integrated Phase Noise <80 mrad [1Hz - 2 MHz]
Line Width <1Hz*
Tuning Range of Comb Spacing >2 MHz
Tuning Range of CEO Frequency >250 MHz
Laser Outputs  five fiber-coupled, linearly polarized, PM output ports
Center Wavelength 1560 nm
Spectral Range >25 nm (500-1050 nm with M-VIS,1050-2100 nm with M-NIR)
Average Output Power >13 mW from each laser port (>60 mW with M-VIS, >200 mW with M-NIR)

*phase lock to optical reference, ▴modified Allan deviation ( λ -type counter, timebase 1ms), **limited by resolution bandwidth of analyzer

Description

The Menlo Systems FC1500-ULNplus Ultra Low Noise Optical Frequency Comb is the ideal clockwork for optical lattice clocks. Our all polarization maintaining figure 9® mode locking technology together with high bandwidth actuators (>1 MHz) for both the carrier-envelope offset frequency and the repetition rate guarantees ultimate performance.

Ever increasing demands for stability and accuracy of time and frequency signals require improved oscillators and frequency references. Today’s best optical clocks rely on narrowband optical transitions and use a frequency comb as a clockwork. The FC1500-ULNplus clearly keeps pace with the best optical lattice clocks, which is proven in an out of loop comparison between two independent ULNplus Combs. This comparison is an elementary part of every systems’ quality check at the Menlo factory. Such Menlo guarantees and proves by measurement that the outstanding spectral purity of the oscillator is transferred perfectly to the desired wavelength for every system delivered to the customer.

Options

  • M-NIR Extension Package

    Product Code: M-NIR

    Extends the stabilized comb spectrum to a range of 1050 - 2100 nm with free-space output port and >200 mW average power. The measurement port can be optimized independently from the CEO frequency stabilization.

  • M-VIS Extension Package

    Product Code: M-VIS

    Extends the stabilized comb spectrum to the 500-1050 nm range with free-space output port and >60 mW average power.

  • HMP High Power Measuring Port

    Product Code: HMP

    Provides stabilized comb light with highest power at customer-defined wavelengths for high precision measurement of lasers with low power levels (<100 µW). A minimum of 3 mW average power in a 3 nm window is provided at the central wavelength specified by customer. Available for 1050 - 2100 nm (HMP-NIR), or 525 - 1050 nm (HMP-VIS). The output is fiber coupled and optional available as free space.

    For 390 - 400 nm (HMP-UV) a minimum of 1 mW average power in a 1 nm window is provided. the output is free space.

  • P250 PM PULSE EDFA Erbium-doped Fiber Amplifier

    Product Code: P250 PM PULSE EDFA

    All polarization maintaining (PM) amplifier delivers intense near infrared pulses with >350 mW at 1560 nm. Several amplifiers can be added for multiple measurement ports.

  • M-780 High Power Measuring Port at 780 nm

    Product Code: M-780

    Output provides stabilized comb light with highest power at 780 nm.
    Contains an amplifier and subsequent frequency conversion, delivering a minimum of 150 mW average power with a central wavalength in the range of 780-800 nm. The output is free space and optional available as fiber-coupled.

  • BDU Beat Detection Unit

    Product Code: BDU

    Generates and measures the beat signal between the frequency comb and an external continuous wave (cw) laser. Available for various spectral ranges, with free space or fiber-coupled optics, and matched to the customer's laser.

    For more information: BDU

  • LLE-SYNCRO Laser Locking Electronics

    Product Code: LLE-SYNCRO

    Allows locking of an external cw laser to the stabilized frequency comb. Performance has been field tested with lasers from major suppliers.

    For more information: LLE-SYNCRO

  • Microwave Ultrastable RF Output

    Product Code: Microwave

    Ultrastable RF output in the 1 MHz-10 GHz range. Utilizing a high-sensitive fast photodetector and a frequency divider where needed.

  • GPS GPS-based 10 MHz Frequency Reference

    Product Code: GPS

    Provides the RF reference input signal for the frequency comb, combining the superior short term stability of an ultrastable quartz oscillator with the long term accuracy of the GPS.

    For more information: GPS

  • ORS1500 Optical Reference System

    Product Code: ORS1500

    The ORS1500 Optical Reference System consists of a cw laser (1542 nm) locked to a stable high-finesse cavity made of ultra low expansion (ULE) glass. It offers ultra narrow linewidth (< 1 Hz) and outstanding short time stability (<2 x 10-15 Hz). By locking the FC1500-250-ULN to the ORS1500, the purity of this state-of-the-art optical reference can be transferred throughout the entire frequency comb spectrum.

    For more information: ORS1500

  • ORS-DL Optical Reference System

    Product Code: ORS-DL

    The ORS-DL Optical Reference System consists of an external cavity diode laser locked to a stable high-finesse cavity made of ultra low expansion (ULE) glass. It offers ultra narrow linewidth (< 1 Hz) and outstanding short time stability (<2 x 10-15 Hz) at wavelengths such as 657 nm, 689 nm, 698 nm, 729 nm, and many others from 400 nm to 1650 nm. By locking the FC1500-250-ULN to the ORS-DL, the purity of this state-of-the-art optical reference can be transferred throughout the entire frequency comb spectrum.

    For more information: ORS-DL

  • WLM-NIR Integrated Wavelength Meter

    Product Code: WLM-NIR

    Integrated wavelength meter with 100 MHz accuracy at 900 - 1700 nm

  • WLM-VIS Integrated Wavelength Meter

    Product Code: WLM-VIS

    Integrated wavelength meter with 100 MHz accuracy at 500 - 1100 nm

Analysis of the out of loop beat signal between two ULNplus combs at the Strontium clock transition frequency: The extremely low phase noise proves that the spectral purity is transfered to the target wavelength, which makes the ULNplus a unique clockwork for Strontium and other optical lattice clocks.

PN integratedPN CC 1Hz 1MHz 01

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Dr. Benjamin Sprenger
Your direct line to our expert
b.sprenger@menlosystems.com

Data sheets

Product literature

Ordering information

  • Product Code
  • FC1500-ULNplus

Headquarters
sales@menlosystems.com
+49 89 189166 0

Menlo Systems, Inc.
ussales@menlosystems.com
+1 973 300 4490

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