Advantest Q8344a Optical Spectrum Analyzer 350-1750nm Michelson Fourier Analysis

US $4,800.00

  • Santa Ana, California, United States
  • Jan 29th
      You're bidding on an Advantest Q8344A Optical Spectrum Analyzer! The Q8344A uses a Fourier spectrum analysis approach based on a Michelson interferometer. This allows the Q8344A to measure optical coherence that cannot be obtained directly using diffraction-type optical spectrum analyzers with monochromator based measurement. This analyzer has a measurement range of 350nm~1750 nm and features a built-in He-Ne laser that functions as the wavelength reference, ensures the wavelength measurement accuracy is maintained within A‚A±0.1 nm (at 1.3 um), and eliminates the need for calibration This instrument is exceptionally well suited to the measurement of coherence length of LD and LED optical sources operated in continuous wave mode only, and it also very effective for the evaluation of laser diodes used in optical data storage equipment, fiber optic gyroscopes, and related applications. This analyzer was recently decommissioned from a university research lab, and it is in very nice condition. The CRT is clear and bright, and the buttons, controls and connectors are in good condition and actuate smoothly and firmly. The unit is fully functional, but I had it checked by an ISO certified calibration lab and the following defects were reported: 1. At 850nm the power reading is -25db with -8db applied.  2. The reading is frequency modulating @ < 50nm span. The unofficial assessment of the technician was that the detection electronics probably need servicing in order to correct the above noted problems, although it may be fine for some applications  I have priced the unit low to allow for potential service costs. I'm selling this analyzer guaranteed to be as described. Good Luck!   Q8344A Operating Manual Wavelength  350nm - 1750 nm  Resolution  0.05nm / 850nm (high resolution mode) 0.1nm / 1310nm (high resolution mode)   Wavelength Accuracy  A‚A±0.1 nm or less  Span    0.1nm /DIV to 140nm/DIV Input Sensitivity -70 dBm to +10 dBm  (0.7 AZA 1/4 m to 1.6 AZA 1/4 m) -60 dBm to +10 dBm  (0.45 AZA 1/4 m to 1.7 AZA 1/4 m) -45 dBm to +10 dBm  (0.35 AZA 1/4 m to 1.75 AZA 1/4 m)     Level accuracy A‚A±2.0dB (780nm), A‚A± 0.7dB (1310,1550 nm) Level scale 0.2,  0.5,  1.0,  2.0,  5.0,  10.0 dB/DIV and linear Measurement time 1.5 second or less Memory function   32 screens ( measurement data) with battery backup 10 screens (measurement condition) with battery backup Floppy disk (MS-DOS format: 720KB / 1.2 MB) Display  Frequency, superimpose, 3-dimentional trend monitor (power, Wavelength) Calculation Analysis Spectrum analysis,Coherence analysis,Spectral half-width Calculation, Averaging, Automatic optimum measurement , Smoothing, Automatic peak search  Optical Input connector  FC connector Data Output  GPIB Standard equipment, direct plotter, Built-in printer External Dimensions  424(W) X 221(H) X 500(D)  mm Weight 27  Kg > click on the images to enlarge Images and item descriptions are the sole property of Surenet, Incorporated. Images and item descriptions may not be used for commercial purposes without written consent from Surenet, Incorporated.       We appreciate your patronage! We go to great lengths to provide exceptional products and service, and we do our best to provide an accurate description of what you are bidding on. We guarantee that our descriptions are true to the best of our knowledge-- If we've left something out, or you are unsure of what we mean, please contact us!  Ask any questions before you bid. Our policies are straightforward and don't leave much room for interpretation, but if you have special requests we will try and work with you to meet your needs.  Winning Bidder The winning bidder must respond within 3 days of auction close. We reserve the right to cancel the sale if the winning bidder does not respond within 3 days of auction close. Buy It Now Bidders must respond within 24 hours of auction close if immediate payment is not required. Winning bidders with "0" feedback must respond within 24 hours of auction close. Payment Payment must be received within 7 days of auction close, maximum. If you don't pay within 7 days, we will request a fee refund from ebay and relist the item. Credit Card orders ship immediately upon clearance from Paypal. Wire transfers ship immediately upon receipt of funds; Personal and business check will be held up to 10 business days to allow the check to clear before the item is shipped. If you pay by Paypal with an e-check, please note that it may take up to 5 days to clear funds from US banks, and up to 30 days to clear funds from banks outside the US. Shipping All shipments are via Fedex unless otherwise specified.  Fedex does not ship to PO boxes. Other carriers are available only by request, subject to our acceptance. We may impose a service fee of $15.00 for using carriers other than Fedex. 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International Bidders If you live outside the US, do not bid if your country is not listed in the "ship to" section of the listing unless we have specifically agreed to accept your bid.   The winning bidder is responsible for all duties, taxes, and fees that may be imposed by their country.  The declared value for Customs purposes will be the amount of the winning bid. We will need your phone number for the Customs documentation. Please provide a phone number with your payment. Due to shipping costs, we do not accept returns from countries outside the US and Canada. We will not under any circumstances accept bids from bidders in countries that are subject to trade restrictions with the United States. Returns Due to the wide variety of products that we sell, returns are handled on a case-by-case basis.  If the item is significantly different than the item description we will certainly make it right. We may replace the item or issue a refund at our discretion. We don't offer returns if you change your mind or order the wrong part, but in some cases we may offer to sell the item for you on consignment or help you find a buyer. We will not pay for unauthorized repairs to an item.  We will not pay for unauthorized purchases of parts or accessories for an item. We will not pay for expedited shipping costs. Shipping refunds will be issued at the rate for Ground services. Items must be returned in the condition that they were received. We do not accept returns for items that have been disassembled or altered in any way.  We do not accept returns for Items that have significantly more usage than when they were received. General All transactions that result from contact made through the ebay site will be conducted through ebay. All transactions will be conducted in accordance with ebay policies.  Bidders in violation of ebay policies will be reported to ebay Trust and Safety. We don't accept bids from bidders with more than 5% negative feedback, or from bidders with a feedback rating less than 0. We reserve the right to cancel bids from bidders who are rude, inappropriate, or who do not wish to abide by these terms and conditions. We reserve the right not to sell to persons who are rude, inappropriate, or who do not wish to abide by these terms and conditions. Please be aware that your bid is a commitment to purchase the item if you are the top bidder. Winning bidders are expected to honor their commitment. We look forward to providing you with a great deal on a great item, professional, courteous, and friendly service, and an enjoyable bidding experience--Good luck!          PayPalA?a‚¬aЂ?eBay's service to make fast, easy, and secure payments for your eBay purchases!  
Condition Used :
An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections.
Seller Notes Please see item description for details

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