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Design of delay elements in a binary optical true-time-delay device that uses a White cell.
S Kunathikom1, B L Anderson, S A Collins
1Schlumberger SCD, 555 Industrial Boulevard, Sugar Land, Texas 77478, USA.
Applied Optics
|December 17, 2003
Summary
This study details the design of optical true-time-delay elements using glass blocks for short delays (1-100 picoseconds) and lens trains for longer durations. Analysis includes optical loss and design limitations for white-cell-based devices.
Area of Science:
- Optics and Photonics
- Optical Engineering
- Device Physics
Background:
- True-time-delay devices are crucial for advanced optical systems.
- White-cell-based designs offer a unique approach to optical delay.
- Efficient design of delay elements is key to device performance.
Purpose of the Study:
- To provide a detailed design analysis of glass block and lens train delay elements for binary optical true-time-delay devices.
- To evaluate the performance characteristics, including optical loss, of different delay element designs.
- To establish design limits for implementing these optical delay components.
Main Methods:
- Detailed design principles for glass block delay elements.
- Design methodologies for lens train delay elements.
- Analysis of optical signal loss for both glass block and lens train configurations.
Main Results:
- Glass blocks are suitable for optical delays ranging from one to a few hundred picoseconds.
- Lens trains are effective for achieving longer optical delay ranges.
- Quantification of optical loss associated with each delay element design.
Conclusions:
- Both glass blocks and lens trains are viable delay elements for white-cell-based optical true-time-delay devices.
- The choice between glass blocks and lens trains depends on the required delay range.
- Understanding design limits and optical loss is essential for practical implementation.