Ian C M Littler

**Title: Innovator Spotlight: Ian C M Littler**

Introduction

Ian C M Littler, a distinguished inventor based in Balmain, Australia, has made significant contributions to the field of seismic detection and laser frequency stabilization. With a total of two patents to his name, Ian has demonstrated a commitment to advancing technology through his inventive solutions.

Latest Patents

Ian's latest inventions include:

1. **System, Device and Method for Detecting Seismic Acceleration**

This innovative device comprises a proof mass and a base that measures sensor acceleration relative to the proof mass based on seismic activity. An optical fiber section connects the proof mass and base, transmitting fiber tension that reflects the sensor's acceleration. Specifically, it incorporates a fiber Fabry-Perot interferometer (FFPI) to provide an optical characteristic indicative of the fiber tension. A compensator is also integrated to counteract changes in optical characteristics resulting from temperature fluctuations.

2. **Methods and Systems for Frequency Stabilisation of Multiple Lasers**

This system proposes a method for stabilizing various output frequencies of several lasers. It employs an optical multiplexer to combine laser beams, coupling them into a length-imbalanced Mach-Zehnder interferometer (MZI). The output is divided via an optical demultiplexer, with each beam detected by corresponding photodiodes. The resultant signals are then demodulated, aimed at stabilizing the central frequency of the respective lasers through a network of servo-controllers.

Career Highlights

Ian C M Littler currently serves as an inventor at The Australian National University, where he engages in groundbreaking research and development. His innovative approaches have positioned him as a key figure in advancing seismic detection technologies and laser engineering.

Collaborations

Throughout his career, Ian has collaborated with esteemed colleagues, including Jong Hann Chow and David Ernest McClelland. These partnerships underscore the importance of teamwork in the research and development process, contributing to the successful realization of complex technological solutions.

Conclusion

Ian C M Littler's inventive spirit and dedication to enhancing technological capabilities make him a noteworthy inventor in his field. His contributions, particularly in seismic detection and laser stabilization, demonstrate the impact of innovative thinking on advancing scientific knowledge and practical applications.