oscillator for deployed optical atomic clocks DAMOP 2020, Poster - - PowerPoint PPT Presentation

oscillator for deployed optical atomic clocks
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oscillator for deployed optical atomic clocks DAMOP 2020, Poster - - PowerPoint PPT Presentation

A robust, field-deployable, low-cost mode-locked laser oscillator for deployed optical atomic clocks DAMOP 2020, Poster Session K01, K01.00082, 4:00 pm on June 3, 2020 Abstract: Frequency combs have been investigated in the laboratory over the


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SLIDE 1

Slide 1 DAMOP 2020, K01.00082 4:00 PM on June 3, 2020

Henry Timmers (htimmers@vescent.com), Dylan Tooley, Bennett Sodergren, Ryan Robinson, Kurt Vogel, and Kevin Knabe (kknabe@vescent.com) Vescent Photonics, 14998 W. 6th Ave., Suite 700, Golden, CO 80401

A robust, field-deployable, low-cost mode-locked laser

  • scillator for deployed optical atomic clocks

Abstract: Frequency combs have been investigated in the laboratory over the course of the last 25 years in a wide range of implementations and applications including but not limited to optical atomic clocks, precision metrology, precision spectroscopy, LIDAR, and low-phase-noise RF generation. While the Nobel prize winning technology of frequency combs have shown their usefulness in a variety of applications, there have been few demonstrations of this technology in real-world applications. Here we present a mode-locked

  • scillator that has been designed to be environmentally robust and low cost, while maintaining suitability

for use in frequency comb applications. Vescent Photonics has designed environmentally robust oscillators and frequency combs for government programs including satellites and terrestrial moving platforms. These designs allow for repetition rate matching at the time of manufacture, which is an important consideration for integration of this technology into several key applications. Vescent Photonics will report on the performance, environmental robustness, and cost of these fiber laser systems.

DAMOP 2020, Poster Session K01, K01.00082, 4:00 pm on June 3, 2020

“A robust, field-deployable, low-cost mode-locked laser

  • scillator for deployed optical atomic clocks”
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SLIDE 2

Slide 2 DAMOP 2020, K01.00082 4:00 PM on June 3, 2020

Mode-locked oscillator with integrated driver electronics in 2U chassis: 43.0 cm x 26.4 cm x 8.84 cm (10.0 L), < 40 W Mode-locked

  • scillator enclosure:

10.75 cm x 6.35 cm x 1.72 cm (0.12 L)

  • Robust, field-deployed design
  • Repetition rates from 80 - 250 MHz
  • Exact repetition rate matching
  • >10 nm optical bandwidth at 1560nm
  • >1 mW average power
  • >150 mW average power and > 40 nm
  • ptical bandwidth with integrated EDFA
  • RIN < -115 dBc/Hz
  • 1560 nm center wavelength with

>12.5 nm optical bandwidth

  • Oscillator average power >50 mW;

EDFA options with up to 2 W average power

  • < 30 fs timing jitter (1 kHz – 10 MHz)
  • Repetition rates from

250 MHz – 2.5 GHz

“A robust, field-deployable, low-cost mode-locked laser

  • scillator for deployed optical atomic clocks”

email info@vescent.com for additional information

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SLIDE 3

Slide 3 DAMOP 2020, K01.00082 4:00 PM on June 3, 2020

  • 100 MHz Repetition rate tuning:
  • Temperature tuning
  • Δ𝑔

𝑠𝑓𝑞 = 1 kHz C

  • >40 kHz range
  • PZT tuning
  • Δ𝑔

𝑠𝑓𝑞 = 2 Hz/V

  • >150 Hz range
  • >100 kHz PZT feedback bandwidth
  • > 10 nm optical BW
  • < 250 fs oscillator pulse durations
  • < 100 fs EDFA pulse durations
  • Radiation-hardened oscillator designs

under development

“A robust, field-deployable, low-cost mode-locked laser

  • scillator for deployed optical atomic clocks”

10 Hz RBW

email info@vescent.com for additional information

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SLIDE 4

Slide 4 DAMOP 2020, K01.00082 4:00 PM on June 3, 2020

  • 200 MHz Repetition rate tuning:
  • Temperature tuning
  • Δ𝑔

𝑠𝑓𝑞 = 2 kHz C

  • >80 kHz range
  • PZT tuning
  • Δ𝑔

𝑠𝑓𝑞 = 8 Hz/V

  • >600 Hz range
  • >100 kHz PZT feedback bandwidth
  • > 12 nm optical BW
  • < 210 fs oscillator pulse durations
  • < 100 fs EDFA pulse durations

“A robust, field-deployable, low-cost mode-locked laser

  • scillator for deployed optical atomic clocks”

10 Hz RBW

email info@vescent.com for additional information

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SLIDE 5

Slide 5 DAMOP 2020, K01.00082 4:00 PM on June 3, 2020

  • Low-noise, gain-saturated amplifier with up to 800 mW of
  • ptical power without free-space optics
  • Output pulse duration < 50 fs (fiber or free-space)
  • Accurate EDFA modeling for custom tailoring of repetition rate

and power

  • Amplifier applications include self-referencing high repetition

rate frequency combs, non-linear photonics platform, few-cycle pulse generation, and parametric conversion into the visible, mid-infrared, and terahertz regimes

HP-PM-EDFA Optics Head Vescent MLO-100 HP-PM-EDFA Electronics Unit

Delay (fs)

Amplitude (a.u.) 1.54 x 44 fs Autocorrelation

Wavelength (nm)

Normalized Spectrum (dB)

Experimental Simulation

Frequency (Hz) Relative Intensity Noise (dBc/Hz)

103 104 105

  • 120
  • 130
  • 110

Oscillator Amplifier “A robust, field-deployable, low-cost mode-locked laser

  • scillator for deployed optical atomic clocks”

email info@vescent.com for additional information

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SLIDE 6

Slide 6 DAMOP 2020, K01.00082 4:00 PM on June 3, 2020 “A robust, field-deployable, low-cost mode-locked laser

  • scillator for deployed optical atomic clocks”
  • New product available Q3 2020
  • Exact repetition rate matching
  • Ideal for applications such as Optical Atomic Clocks, High-

precision Optical Metrology, Dual Comb Spectroscopy, and Low Phase Noise Microwave Generation

  • 𝑔

𝐷𝐹𝑃 linewidth < 200 kHz

  • Fully stabilized system: ADEV’s < 1 × 10−16/ 𝜐
  • > 30 mW supercontinuum light available to user
  • Custom supercontinuum wavelength available upon request

Wavelength (nm)

1000 1800

  • 10
  • 20
  • 30
  • 40
  • 50

1200 1400 1600 2000 2200

Normalized Spectrum (dB)

Fiber Frequency Comb with integrated driver electronics in 2U chassis: 43.0 cm x 26.4 cm x 8.84 cm (10.0 L), < 60 W

email info@vescent.com for additional information