Optical Frequency Combs

TOPTICA Photonics Inc.Request Info
Facebook X LinkedIn Email
Toptical Photonics DFCNew offset-free optical frequency combs from Toptica Photonics Inc. enable unprecedented passive stability for complex experiments.

The difference frequency comb (DFC) operates with Cero technology (zero-νCEO), which obtains a phase-stable laser output with an inherently vanishing frequency offset. To achieve this, femtosecond laser pulses centered at 1560 nm are generated with a mode-locked Er3+-doped fiber oscillator. Subsequent amplification and coherent spectral broadening of the pulses in a nonlinear fiber creates a broad supercontinuum.

Difference frequency generation (DFG) between the lower and upper spectral parts of the supercontinuum produces a frequency comb output centered at 1560 nm. Since the two spectral parts have identical carrier-envelope frequencies, the resulting comb is offset-free, due to common-mode suppression in the DFG process. In other words, the carrier-envelope frequency is fixed at zero automatically, and no active stabilization of the phase is necessary.

This passive approach results in improved phase stability and higher reliability compared with conventional active stabilization techniques. The absence of an electronic feedback loop for phase stabilization leads to reduced system complexity and circumvents electronic noise limitations.

The system comes with an integrated radio frequency reference and locking electronics to synchronize the repetition rate, or it can be locked to an optical reference.

The main unit, DFC-Core, provides four νCEO-stabilized outputs at 1560 nm. Various extensions are available to convert the outputs to any desired wavelength from 420 to 2200 nm. All CW lasers in this wavelength range can be locked to the frequency comb.

Published: April 2015
* First Name:
* Last Name:
* Email Address:
* Company:
* Country:

When you click "Send Request", we will record and send your personal contact information to TOPTICA Photonics Inc. by email so they may respond directly. You also agree that Photonics Media may contact you with information related to this inquiry, and that you have read and accept our Privacy Policy and Terms and Conditions of Use.

Register or login to auto-populate this form:
Login Register
* Required

Photonics Marketplace
Looking for Frequency Combs? There are 7 companies listed in the Photonics Buyers' Guide.
Browse Cameras & Imaging, Lasers, Optical Components, Test & Measurement, and more.
continuous wave lasersProductsAmericasNew YorkTopticaLasersoptical frequency combDFCDFC-Coredifference frequency generationDFGCerocarrier envelope offsetCEO

We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.