Phase sensitive detection is employed with an absorbance of less than 1% observable under field conditions. Standard image high resolution image export powerpoint slide moreover, the study of. Using a wavemeter is usually more precise than measuring a wavelength with a spectrometer. Absolute laser frequency is monitored with a high finesse wavemeter to an accuracy of less than 10 mhz. Wavelength meter sensitive and compact wavemeter with. A microwave cavity or radio frequency rf cavity is a special type of resonator, consisting of a closed or largely closed metal structure that confines electromagnetic fields in the microwave region of the spectrum.
Toptica photonics has been developing and manufacturing high end laser systems for more than 20 years. High finesse is a german optics company that makes highquality spectrometers. The labview instrument driver import wizard allows you to convert an instrument driver from labwindowscvi c source to a labview wrapper dll. Read labview based laser frequency stabilization system with phasesensitive detection servo loop for doppler lidar applications, optical engineering on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. The robust highfinesseangstrom high precision wavelength meters with. The omm6810b optical multimeter coupled with the omh6700b series optical measurement heads, provide the flexibility to easily and accurately measure the optical power of short wavelength lasers, higher power pump, and fiber laser diodes power only heads offer the capability of measuring power only from laser diode sources while capitalizing on the wide dynamic range of semiconductor detectors. The wavelength meter consists of an optical unit, a usb connection solution for ibm pc compatible computers and the easy to use software. Highfinesse gmbh wavelength meter, product overview. Together, this group has over 80 years of combined experience in the design, manufacture, and marketing of lasers and precision test instruments used in basic and applied research, engineering, and production test. An estimation of the relative accuracy of the speckle wavemeter and the commercial. The structure is either hollow or filled with dielectric material.
Raman sideband cooling of a 8ba ion using a zeeman interval. Click startmenu programs highfinesse wavelength meter. Please choose the manual installation way, selecting the driver by yourself. This experiment is controlled by a computer running a similar labview script, which i scans the piezoelectric driver voltage to tune the laser output wavelength, ii records the wavelength from the wavemeter for each trace, and iii saves the laser intensity trace from the oscilloscope. The systems are used for demanding scientific and industrial applications in biophotonics, industrial metrology and quantum technology. Light transmitted through the cell was observed with a photodetector. You will not be able to verify that the data you output since. Example programs are included with most instrument driver downloads. The class supports the addition of a multichannel switchbox connected to the wavelength meter. Highfinesse ws5 meter usb driver for labview national.
Labviewbased laser frequency stabilization system with. The optical unit is designed to create interference patterns, obtained by four fizeau interferometers. Hi, first, i am a relatively inexperienced labview developer, so while i will do my best to provide all the necessary information, if something is missing or unclear, my apologies in advance. Interfacing to a high finesseangstrom spectrometer via python. The dynamic range in the present setup is limited due to realtime data analysis in labview. A commercial wavemeter highfinesse ws7, resolution 5 mhz and a fabryperot interferometer burleigh, free spectral range 2 ghz, finesse 200.
The model number of the wavelength meter indicates the relative frequency accuracy of the respective instrument ws8 instruments have a relative accuracy on the order of 10. Button product overview ws series button product brochure wavelength meter. Absorption spectroscopy in highfinesse cavities for. This can be done on the computers in the lab, or any other computer with the current version of labview installed. Harnessing speckle for a subfemtometre resolved broadband. Aeolus high energy uv laser wavelength measurement and.
Instrumentation development of a highresolution twolaser. The measure in the uv domain was taken with a high finesse laser calibrated wavemeter wsu10 prototype which was graciously provided and put. High resolution single scan widths must be at least 25 ghz wide. The core titanium sapphire ring laser must have scan rates of up to 200 ghzsec with modehop free wavelength scanning over 5 nm with up to 10 khz resolution in less than 10 minutes. Two photon absorption and stimulated raman scattering in. Dopplerfree yb spectroscopy with fluorescence spot. Generating an analog output waveform in this exercise, you will use the daq assistant to build a labview vi that generates and outputs an analog waveform. Stability of the wavemeter could be guaranteed only for two scans for the smaller interval and one scan for the larger one. As an extra feature, routines are added to toggle between wavemeter channels without blocking execution of other matlab scripts.
Atmospheric transmission for cesium dpal using tdlas. Perram atmospheric transmission for cesium dpal using tdlas. There are also wavemeters which can act as spectrometers, thus offering both functions with high accuracy. The most distinctive attribute of the developed cell is the double structure of the cathodes. All ecdls are locked by a high finesse wsu10 wavelength meter every. An estimation of the relative accuracy of the speckle wavemeter. Programming of the wavelength stabilization for a titanium. Frequencydomain displacement sensing with a fiber ring. Our products topticas cutting edge laser systems combine world class specifications with highest precision, reliability and longevity. Two photon absorption and stimulated raman scattering in alkali vapor lasers. A sinusoidal wavelength modulation with 2fm amplitude was applied at 2.
Within this folder is a folder entitled labviewinterface, and all work on this interface is saved in this folder, including the nal versions of the. Ws6 or ws7 wavemeter driver file exchange matlab central. Dispersion of the cutoff point was used to extract a coarse wavelength estimate, and subsequent computational analysis of the complex standing wave radiation pattern leading up to the cutoff point enabled a much. To open the manual in pdf format, browse to the installation folder. Its stored in the envelope that contains the manual and certificate. The highfinesseangstrom wavelength meters are the unsurpassed highend instruments for wave length measurement of pulsed or continuous laser sources. To make the experimental apparatus compact, we have adopted dc discharge, and the discharge cell was inexpensively constructed for replacement with commercially available vacuum parts. The advantage of a spectrometer, however, is that it also delivers information on relative powers of different spectral components. Download highfinesse ws5, a labview usb dll with wrapper instrument driver for a wavelength meter from highfinesse, models. Another suggestion to increase the readout speed according to the manual of the keithley. The documents are located in the documentation folder.
Multichannel optomechanical switch and locking system. The wavemeter is calibrated using a 780 nm laser which is locked to within 1 mhz of the 87rb d 2 line. Highfinesse angstrom ws5 wavelength meter instrument. Rp photonics encyclopedia wavemeters, wavelength meters.
It measures the wavelength of the ecdl and sends the information to a labview program, via. Bandwidth of omm6810b optical multimeter analog output 80 kb, pdf high power linearity test. Frequencydomain displacement sensing with a fiber ringresonator containing a variable gap. Typical chart data has no time information, so the axis needs to be defined with t0 and dt, assuming equal spacing between points. Matlab driver class to setup and readout a high finesse ws6 or ws7 wavelength meter. Labview is a programming environment where time is a first class element see e. Bristol wavemeter interface documentation martha roseberry august 1, 2008 1 basics the labview wavemeter interface can be found in the bistol wavemeter folder on the desktop of the computer qol. The wavemeter is calibrated using a 780nm laser which is locked to within. The microwaves bounce back and forth between the walls of the cavity.
Highfinesse gmbh quick start guide highfinesse wavelength meter, wavemeter, step. Cristina bachmann, heiko bischoff, christina kaboth, insa mingers, sabine pfeifer. By providing high power lasers even at exotic wavelengths toptica is renowned for the widest wavelength coverage of stateoftheart lasers on the market. We recorded images of 1024 1024 pixels at 100fps and 2 s exposure. The labview instrument driver export wizard allows you to convert a labview 8. The ringdown cavity is a 22 mm 10 mm rectangular cross section quartz channel 55 cm long, fused to 1. The wavemeter is calibrated using a 780nm laser which is locked to within 1mhzofthe87rb d 2 line. When it comes to the high standards of the photonics community in scientific research as well as industrial development, highfinesse understands the challenges and high demands for customization. A new fringecounting wavemeter based on a compact spherical interferometer is described. Wednesday, december 8 midnight for this homework assignment, you will complete a tutorial on the labview data acquistion software. We demonstrate a broadband wavemeter by imaging the radiation from multiple interfering modes approaching cutoff in a tapered hollow waveguide clad by omnidirectional bragg mirrors. Osa wavemeter based on dispersion and speckle in a. Several key functions are explained in the tutorial videos tab.
Wavemeter class d no 1, mk ii za17469 equipment military u. The wlm driver occasionally behaves in ways that contradict the user manual. The 871 laser wavelength meter uses a proven fizeau etalon design to measure the wavelength of pulsed and cw lasers to an accuracy as high as 0. Find instrument drivers that are available for this instrument for use in labview, labwindowscvi, or measurement studio. Rp photonics consulting on laser technology, nonlinear. Waveanalyzer 1500s highresolution optical spectrum analyzer. A hollow cathode discharge cell has been developed for a variety of sample phases. Dopplerfree yb spectroscopy with fluorescence spot technique. Waveanalyzer 1500s high resolution optical spectrum analyzer the waveanalyzer tm 1500s is an optical spectrum analyzer offering very high spectral resolution in combination with a fast update rate of 4 measurements per second across the entire c or lband or 10 hz across any 200 ghz window. We regularly update this software to add significant new features and make improvements suggested by our users. I am attempting to read the output of an ifm sm6001 flow meter in labview, and write the flow values to an excel file.
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