Research

Recent projects:

• Single-frequency fiber lasers
• Direct-transition visible fiber lasers
• Fiber Bragg grating writing
• 3-um fiber lasers
• High-repetition-rate mode-locked fiber lasers
• Kilo-watt laser evaluation system
• 10-um fiber-based laser system
• Scintillating glass
• Optical refrigeration in novel glass and fibers

 

Facilities and Capabilities:

We have extended facilities to fabricate glass (1), Characterize it (2), Passive and Active Optical fiber designs (3), and many devices that help build our fiber lasers (4). We also have the capability of testing and evaluating optical components that can be used for high-energy applications (5).

 

 

We build fiber baser lasers in all spectral bands from UV to IR. In the picture above are examples of two visible fiber lasers with blue and green emissions.

Masoud Mollaee,et al, “Single-frequency blue laser fiber amplifier,” Opt. Lett. 43, 423-426 (2018)

 

 

Multicore fiber lasers and hollow core gas filled fiber lasers were built for many applications, such as: quantum computing, Ultra-short pulse amplification and Raman lasers applications. 

Li, et al, “Injection-locked highly Yb³⁺-doped uncoupled-61-core phosphate fiber laser,” Opt. Lett. 48, 590 (2023).

 

 

Emission beyond 3um was obtained via Dy³⁺/Er³⁺ co-doped ZBLAN fiber laser.

Wang, et al, “Beyond 3 mm Dy3+/Er3+ co-doped ZBLAN fiber lasers pumped by 976 nm laser diode,” Appl. Phys. Lett. 118, 151101 (2021).

 

 

Scintillating glass sample under UV excitation.

 

 

From left to right: optical glass, Infrared transmitting glass, Er Magneto-optical glass, Dy Magneto-optical glass, heavy metal oxide glass, heavy metal oxide glass extended IR transmission.