Projects
High-resolution displacement detection and instantaneous frequency detection
You can read about this research here.
Photoacoustic gas sensing
We have developed the theory behind photoacoustic gas sensing using fiber optic sensors. More information will be available soon.
Quantum entanglement in few-mode and multimode fibers
In the past, entangled photon pairs were created using bulk periodically poled crystals and waveguides utilizing their second-order nonlinearity. However, this method results in additional loss from fiber coupling and suffers from low photon yield at telecommunication bandwidths. The generation and transmission of entangled photons through optical fibers are desirable for various applications. Nevertheless, the current approaches pose several challenges, including complexity, limited data generation, reliance on bulky and high-powered pulsed lasers, and the introduction of quantum noise. This study utilizes various modes of few-mode and multimode fibers to produce a pair of entangled photons. This will provide improved control over entanglement properties and better integration with SDM systems. This approach is expected to alleviate the challenges mentioned earlier. You can watch a recent talk at Photonics West 2023 here.
High-resolution ultrafast time-stretch spectroscopy
We have developed high-resolution spectroscopy in the 1550 nm range via dispersive Fourier transform and are extending it to the MIR. More information will be available soon.
Resources for Students
Please refer to these resources to supplement your learning:
- Book: Mastering Your PhD (2nd edition) by Patricia Gosling – Available at the library
- Book: Planning Your PhD by Hugh Kearns – ask me for a copy
- Talks by Hugh Kearns
- Advanced Fiber Optics by Luc Thevenaz
- Fiber Optic Measurement Techniques by Rongqing Hui