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Semrock MaxDiode Laser Diode Clean-up Filters

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Semrock MaxDiode Laser Diode Clean-up Filters

Extensive selection. Custom-sized filters are available in one week.


These filters from Semrock have been specially designed for use with diode lasers. They are guaranteed to have an unprecendented 90% transmision over a carefully tailored range of each diode lasers's expected wavelengths, with ultralow passband ripple for assured consistency, all while dramatically reducing unwanted out-of-band spectral noise (especially spontaneous emission). MaxDiode hard-coated filters offer the following unique advantages:

  • Highest transmission exceeding 90%, over a carefully tailored range of each diode's possible laser wavelengths
  • Square ultralow ripple passband for total consistency as the laser ages, over temperature, or when replacing a laser
  • Extremely steep edges transitioning to very high blocking to filter out the undesired out-of-band noise
  • "No-burn-out" hard coating technology, for lower cost of ownership and proven reliability.

MaxDiode filters are available from stock for the following laser wavelengths; 375nm, 405nm, 440nm, 470nm, 640nm, 785nm and 975nm. Each filter is housed in a labeled, black-anodised aluminium ring with a diameter of 12.5mm or 25mm and a thickness of 3.5mm. Filters with non-standard sizes are offered and have a one week lead time.

Click here to go to Semrock's website for a full list of laser diode filters. Prices listed are in US$ and do not include any delivery charges or taxes to Australia and New Zealand. Most filters are in stock at Semrock and can be delivered to Australia/New Zealand in 1-2 weeks. Contact us for further information.


2017 Semrock catalogue (12Mb pdf)                  Read more on Semrock's website