Precision Electro-Optic and Laser Technologies
5 December, 2018 App Notes 0 comments

We measured the phase noise between two phase locked D2-100 DBR Lasers.  The phase noise (integrated from 1 Hz to 100 kHz) was measured to be <1.1 mrad.  Read the complete application note here.

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15 August, 2018 App Notes 0 comments

What is Servoing? The goal of a servo is to adjust some output to keep an input at a constant value (typically 0). Think about how the cruise control feature on a car works: the cruise control adjusts the gas throttle (the servo’s output) in order to keep the speedometer reading (the servo’s input) a […]

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5 February, 2018 App Notes 0 comments

The D2-125 Reconfigurable Servo was originally designed to lock a cw laser to an error signal such as a narrow atomic absorption line or a high-finesse cavity.  But Marinus Huber from the Ludwig-Maximilians-University and the Max-Planck-Institute for Quantum Optics and his colleagues have also used it to control the intensity of an ultrafast mid-ir laser.  […]

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8 January, 2018 App Notes 0 comments

By using the Absolute or Relative Jump functions in the advanced features set of the D2-125 Reconfigurable Servo, it is possible to move the lock point from one error feature to another.  In this Application Note we demonstrate this capability by jumping the laser wavelength from one hyperfine transition to another and then recapturing lock. […]

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9 February, 2017 App Notes 0 comments

Dr. Michel Lintz and his colleagues at the Université de la Côte d’Azur in Nice and the Centre National d’Études Spatiales in Toulouse have recently reported narrowing the linewidth of a DFB diode laser to 4 kHz using both feed back and feed forward techniques.  Dr. Lintz’ team used a Vescent Photonics D2-105 Laser Controller to […]

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21 December, 2016 App Notes 0 comments

We thank Prof. Bergeson for sharing their work, Measurement of the Yb I 1S0 – 1P1 transition frequency at 399 nm using an optical frequency comb, published in Physical Review A, 94, 052511 (2016).

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16 December, 2016 App Notes 0 comments

Dr. François Bondu of CNRS in France shared his group’s work to produce an extremely narrow electrical wave with broad tunability.  Dr. Bondu used our D2-105 Laser Controller to drive a DFB laser as part of the work. We thank Dr. Bondu for sharing the preprint of his paper that has been accepted for publication […]

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25 January, 2016 App Notes 0 comments

Microresonator Frequency Comb Stabilization with the Vescent Photonics D2-125 Reconfigurable Servo The comb tooth spacing and its control are important parameters for building an effective frequency comb. Senior Research Scientist Dr. Shu-wei Huang at UCLA has used the Vescent Photonics D2-125 Reconfigurable Servo to stabilize the comb tooth spacing of a microresonator frequency comb and shares […]

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8 December, 2015 App Notes 0 comments

We are pleased to provide an application note on the use of the D2-135 Offset Phase Lock Servo to acquire phase locks with frequency offsets to 43 GHz and potentially higher. Sideband Locking Application Note Normally the D2-135 OPLS is used to obtain a phase lock between slave and master lasers with a user-selected frequency offset […]

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4 December, 2012 App Notes 0 comments

PDH Lock to High-Finesse Cavity VDN00116 rev 1 We demonstrate the locking of a Chip External Cavity Laser (CECL) to a cavity with a finesse of ~13,000.  A D2-125 Reconfigurable Servo Loop Filter provides adjustable gain feedback to the laser through current injection.

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