Application Notes
Dual-reference approach for de-drifting an ultra-low-expansion cavity-stabilized laser
As atomic quantum computing and sensing demand higher operational fidelities, precise lasers are essential, maintaining fractional linewidth and frequency instability below a few parts in 100 trillion (~5×10-14). Ultra-low-expansion (ULE) cavity-stabilized lasers meet linewidth requirements but drift over time affects frequency stability. Traditional reliance on computing/sensing atoms for reference leads to downtime. We propose a dual-reference approach, where cavity-stabilized lasers sync with Vescent’s acetylene optical clock (LTS), reducing reliance on atomic corrections.
Extending the Offset Frequency Range of the D2-135 Offset Phase Lock Servo by “Indirect” Locking
Some work requires two lasers to be locked with larger offset frequencies. In
this application note we demonstrate a method for achieving offsets of at least 43 GHz with indications that with the proper equipment the offset could be extended to 100 GHz or more.
An Acetylene Optical Clock with Maser-like Performance Assembled from Commercially Available Products
Vescent and the Danish National Metrology Institute (DFM) have demonstrated hydrogen-maser-like performance of an acetylene optical clock assembled by simple integration of the two companies’ commercial-off-the-shelf (COTS) products. A 100 MHz clock output with frequency instability of 2.6x10^(-13)/√τ and a long-term instability reaching 8x10^(-15) around τ = 2,000 s was demonstrated by combining Vescent’s FFC-100 frequency comb with the DFM Stabilaser 1542ϵ optical frequency reference.
Integrated f(CEO) Phase Noise of 280 mrad RMS in a SESAM-based Frequency Comb Supporting a Fractional Frequency Instability of 1.3x10^(-17) at 1 s
Integrated f(CEO) Phase Noise of 280 mrad RMS in a SESAM-based Frequency Comb Supporting a Fractional Frequency Instability of 1.3x10^(-17) at 1 s
Transferring the Long-Term Stability of a GPS-Disciplined OCXO to Vescent’s FFC-100 Optical Frequency Comb by Repetition Rate Locking
Transferring the Long-Term Stability of a GPS-Disciplined OCXO to Vescent’s FFC-100 Optical Frequency Comb by Repetition Rate Locking
Beat note detection at 895 nm with an EOT detector
Beat note detection at 895 nm with an EOT detector
MENHIR-1550 rep rate lock to reference oscillator
The 1 GHz rep rate of a MENHIR-1550 was stabilized.
qNimble Quarto functions as a modulation source, lock-in amplifier, and PI loop filter
Nathan Lemke and his students at the Bethel University AMO lab locked a laser to a two-photon transition of rubidium-85. They used the qNimble Quarto as a modulation source, lock-in amplifier, and PI loop filter servo to effect a Pound Drever Hall (PDH) type lock.
Locking a RIO PLANEX Laser to the Vescent FFC-100 Fiber Frequency Comb
We demonstrate a lock of a RIO PLANEX 1550nm narrow linewidth laser to the Vescent FFC-100 Fiber Frequency Comb using the Vescent D2-135 Offset Phase Lock Servo.
Obtaining an Offset Phase Lock while using the D2-125 Peak Lock Feature
Learn how to fine tune the D2-135 phase lock
SLICE-DHV Performance
Load Size Selection and Limiting Factors of the SLICE-DHV’s Modulation Output
THz Generation with the Menhir Laser
The Menhir-1550 laser was used to generate terahertz waves
Simplified offset stabilization of a low-noise 1 GHz oscillator
Locking ƒCEO of a 1 GHz mode-locked laser
Calculating Phase Noise from the D2-135
Q: What is the phase-noise on my laser beat-note going to look like when locked with the D2-135 Offset Phase Lock Servo (OPLS)? A: There are a lot factors that affect the final lock performance of the D2-135. Like frequency noise, phase noise is measured in terms of a noise density — or noise within
