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August 01, 2013  

Semrock RazorEdge® optical filters and WellDog Raman Spectrometers used together in challenging environments

August 1, 2013, Rochester NY -  WellDog announced last week that its next generation of Reservoir Raman Spectroscopy™ systems, designed for monitoring challenging in situ coal seam environments and utilizing Semrock’s rugged and reliable RazorEdge® filters, are now in service.  The new systems provide a 10-fold increase in sensitivity and speed, are capable of operating at full rating in excess of 65°C (149°F), and show a 4-fold increase in resiliency to suspended particles.  

 “Our patented RazorEdge filters offer the highest performing deep laser-line blocking and ultra-steep edges for the instrumentation market,” said Rob Beeson, GM of the Precision Coatings Group, IDEX Optics & Photonics. “Our high laser damage threshold and five-year guarantee makes it very comfortable for instrumentation manufacturers to select Semrock filters when performance under pressure is critical.”

 “These new systems represent the pinnacle of harsh environment Raman spectroscopy sensing,” said Quentin Morgan, CTO of WellDog. “The new systems not only provide better sensing performance, but are more ruggedized and reliable than previous generations.”

This technology is expected to see continued growth with the increased demand for energy resources worldwide.


Semrock, Inc., manufactures high-volume optical filters that set the standard in performance and reliability for the biotech and analytical instrumentation industries, as well as innovative optical filters for more general laser and optical systems applications.  All Semrock optical filters are made with hard-coated sputtered optical coatings.  End-users benefit from a wide selection of standard catalog products that ship from stock.  Semrock’s patented and patent-pending products include its highly acclaimed BrightLine® fluorescence filters, state-of-the-art filters for Raman spectroscopy, and other unique filters for lasers and optical systems.  Semrock’s innovative products, made possible by combining modern sputtered coating techniques with Semrock’s proprietary volume manufacturing technology, are covered under a five-year warranty.

Founded in September 2000, Semrock is based in Rochester, New York, a well-known center of optics, and has sales offices throughout the United States.  Semrock joined IDEX Corporation in October 2008 and is a brand under IDEX Optics & Photonics platform. 

Amanda Valek-MacDonald
Marketing and Communications Manager, IDEX Optics & Photonics

WellDog (trade name of Gas Sensing Technology Corp and subsidiary WellDog Pty Ltd) is a privately held company that applies a diverse set of innovative technologies to address the numerous critical needs of unconventional oil and gas and alternative energy industries in a high volume, low cost manner. Its flagship gas testing technical service has identified more than half a billion dollars worth of natural gas in hundreds of coals around the world over the past ten years, while enabling resource producers to leave more than a billion gallons of water in a pristine condition. WellDog now provides several technical services to the coal seam gas and coal mining industries including gas testing, permeability testing, downhole reservoir monitoring gauges, and environmental monitoring services. The company has offices in Laramie, Wyoming and in Brisbane and Roma, Queensland. More information is available at www.welldog.com.
1482 Commerce Drive
Laramie, Wyoming 82070 USA
+1 307 742 6340 
340 Adelaide Street
Brisbane, Queensland 4000 Australia
48 Spencer Street
Roma, Queensland 4455 Australia
+61 7 4622 5561