Brooke, Try eBay. I got mine ther (maybe from a guy in Utah). He was also sel;ling similar spectrometers, but for a lot more money than Roland.
BTW, There are more Ocean Optics spectrometers available. If interested, drop me a note off-list. -John ================== > Hi Achim: > > SMA RF connectors have a very limited life (number of matings) until they > are worn out. That probably doesn't apply to > SMA threaded fiber optic connectors. > Where can I get short fiber optic cables that mate with the Ocean Optics > HR2000 Optical Spectrum Analyzer? > http://www.prc68.com/I/ML-OSA.shtml#HR2000 > > Have Fun, > > Brooke Clarke > http://www.PRC68.com > http://www.end2partygovernment.com/Brooke4Congress.html > > > Achim Vollhardt wrote: >> Dear John and all, >> >> I do work in high energy physics and we use LEMO and other standards. >> For some years now, I have started to advertise >> against LEMO (in particular the LEMO 00 size), as it is VERY sensitive >> to mechanical defects and partial connection >> (yes, you can ..). We have found very often defective LEMO connections, >> which could only be detected via time domain >> reflectometry. Or LEMO interfaces, which changed impedance significantly >> when rotating them in the fully mated >> position.. this list could be extended a lot more. And this famous click >> when mating is inaudible in typical high >> energy physics electronics barracks.. too much fan noise. >> >> In addition, for the very fast signals of modern DAQ systems, LEMO 00 is >> just not up to speed (literally) anymore. If >> size is not of ultimate importance, we switched to SMA, or SMC if size >> matters. >> >> About this dreadful OPERA fiber connector: >> >> It very much looks like a FC connector. It has a polarisation nut and I >> have to confess having misconnected them more >> than once myself. >> It might have been beneficial to shorten in this standard the thread >> length so there is no possibility to engage the >> thread (not even partially) when not properly aligned. As the thread is >> indeed fairly long, you can do what seemed to >> have happened in OPERA. >> >> >> I acknowledge the importance of QA, but also some design-inherent >> features like low power indications should be in >> place to prevent these things from happening. >> >> Regards, >> Achim >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> >> > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
