Single fluoride-fiber laser produces white laser light

June 1, 2006
Sumita Optical Glass claims to have achieved the first continuous-wave white-laser oscillation with a new single fluoride glass fiber by combining three primary colors (red, green, and blue).

Sumita Optical Glass claims to have achieved the first continuous-wave white-laser oscillation with a new single fluoride glass fiber by combining three primary colors (red, green, and blue). The white-light laser resulted from the combination of 522 and 635 nm laser energy, simultaneously excited by guiding 440 nm blue diode-laser light into a fluoride-glass fiber, plus residual light from the blue diode laser. The fiber consists of aluminum fluoride glass doped with praseodymium, which emits green and red fluorescence upon absorbing light from the blue diode laser. Some commercial fluoride-glass fibers are available, but most are made of a combination of zircon-fluoride glasses, which is less practical.

Click here to enlarge image

To date, white laser light has typically been created by combining three primary colors generated separately in some way, for example, in a gas laser or by guiding IR laser energy into a nonlinear crystal. However, those methods suffer from issues such as conversion inefficiency, which increases energy consumption, requires a larger laser oscillator, and high cost. Because Sumita’s white-light laser is configured with a single fluoride-glass fiber and 440 nm diode laser it results in better conversion efficiency, energy consumption, size, cost, and performance. Contact Masatoshi Sumita at [email protected].

Sponsored Recommendations

Melles Griot® XPLAN™ CCG Lens Series

March 19, 2024
IDEX Health & Science sets a new standard with our Melles Griot® XPLAN™ CCG Lens Series fluorescence microscope imaging systems. Access superior-quality optics with off-the-shelf...

Spatial Biology

March 19, 2024
Spatial Biology refers to the field that integrates spatial information into biological research, allowing for the study of biological systems in their native spatial context....

Custom-Engineered Optical Solutions for Your Application

March 19, 2024
We combine advanced optical design and manufacturing technology, with decades of experience in critical applications, to take you from first designs to ongoing marketplace success...

Semrock Optical Filters Resources

March 19, 2024
Looking for more information about Semrock optical filters? Explore sets by fluorophore, download the 2023 Semrock catalog and more.

Voice your opinion!

To join the conversation, and become an exclusive member of Laser Focus World, create an account today!