Iridian Spectral Technologies Ltd (Iridian) – Ottawa, ON, Canadawww.iridian.ca – Iridian Spectral Technologies Ltd is a diversified optical filter manufacturer that is an international leader in filter design and manufacture especially for application in the fields of fiber optic communications, optical spectroscopy, 3D entertainment, and in aerospace. Iridian Spectral Technologies Ltd was ranked as one of the top 150 high technology companies in Canada in the 2011 and 2012 Branham300 rankings and won the 2010 Canada Export Achievement Award for the province of Ontario sponsored by Profit magazine together with Export Development Corporation (EDC). Iridian Spectral Technologies Ltd is a global supplier with distributors in many countries particularly in Asia.   Follow us on Twitter @IridianSpectral


How Premium GFFs Improve EDFA Performance And Optimize Module Design
Iridian’s premium GFFs deliver higher-level performance than traditional GFFs to meet stringent PPEF specifications, as well as provide additional functionality.  Continue Reading..
Datacenter Interconnect Bandwidth: The Role of Optical Filters and Etalons
Data center evolution is driving demand for ever-higher data transmission rates, necessitating innovation in data center optical interconnect component design.  Continue Reading..
The Application Of WDM Channel Skip Filters
Channel skip filters enable precision band splitting in telecommunications options, offering improved performance over edge pass filters at a cost adaptable to any project budget.  Continue Reading..
Advantages Of Multiple Band Pass Filters In Telecommunications Applications
Multi band filters help optimize price-performance balance while also conserving space, simplifying design, and improving (or offering equivalent) performance versus single band filters.  Continue Reading..
Iridian Spectral Technologies
Wavelength Budgeting For Optical Filters
Considerations when specifying transition pass bands, blocking bands, and transition widths include filter manufacturing tolerances, thermal tolerances, and source/detector variations. These factors must be taken into account properly and completely to achieve optimal spectral performance.  Continue Reading..
Hybrid Gain Flattening Filters In Optical Fiber Amplifiers
Hybrid GFFs save space, simplify system layouts, cost less than a two-filter setup, and offer unparalleled reliability. Meet the new standard in optical fiber amplifier components.  Continue Reading..
Messages From Above — Optical Satcom Lights The Way
The next advances in communications, 5G and machine-to-machine communications, will require “help from above” to blanket literally every corner of our planet with high-speed, ultra-low latency, secure networks — telecom meet satcom.  Continue Reading..


  • Jason Palidwar of Iridian Spectral Technologies talks to Photonics Online at Defense + Commercial Sensing 2022 about Iridian’s optical filters and how they’re used in remote sensing applications including earth observation and gas detection.

  • What is a steering wheel? This might not be such an odd question for drivers in the near future. As autonomous vehicles begin to dominate our roads, LiDAR will be an important technology that will allow them to navigate and respond in a safe manner.

  • Iridian Spectral Technologies offers advanced thin film optical filter technology for telecom, spectroscopic instrumentation and lasers, as well as biophotonics, micro-optics, and aerospace applications.

  • As Datacom applications become more widespread, greater requirements are placed on optical filter reliability, storage capabilities, smaller sizes, and costliness. At Photonics West 2018, Jason Palidwar of Iridian Spectral discussed the importance of the use of optical filters in regards to how they help transfer, store, and access data from the Cloud<>

  • On the first day of DCS 2017, Jason Palidwar, with Iridian Spectral Technologies, spent a few minutes with us talking about the 3 key criteria that apply to all of the filters his company manufactures – surface quality, spectral characteristics, and durability and reliability.


Iridian Spectral Technologies

2700 Swansea Crescent

Ottawa, ON K1G6R8


Phone: 613-741-4513

Contact: Jason Palidwar