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LightTime’s LightClocks™ are passively
modelocked semiconductor lasers that produce high-speed optical pulses. LightClocks
have fixed rep rates scalable from 10 to 160+ GHz, with optical CW powers > 40mW
(i.e., period average), and optical peak powers > 200 mW. Their center
wavelengths can be from 700 nm to 1600 nm. LightClocks are amenable to standard
mass production methods and therefore relatively inexpensive for high-volume
applications.
LightClock™
Optical Clocks Attributes: |
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- COMPLETELY
SCALABLE: Speed: LightClocks can be
produced with pulse rates from 10 GHz to 160GHz. Distribution:
LightClock optical signal output is divisible into
multiple clock distribution paths.
- REDUCED
POWER CONSUMPTION: Net savings on the order
of 10% of the total MPU power consumption are anticipated.
Due to the LightClock's native pulses being directly
distributed to various MPU chip locations, electronic
signal transmission and line driver losses are eliminated
- LESS JITTER: Rather than tens of picoseconds jitter inherent to VCO/PLL electronic
clocking, the LightClock has less than a few
picoseconds jitter.
- ESS DELAY: In electronic clocking, scaling increases RC delay. LightClocks
have inherently less delay, which decreases
with scaling.
- SIMPLIFIED
SKEW MANAGEMENT: The LightClocks' photonic
signal time-of-arrival to the regions of the chip
can be easily controlled using different optical path
lengths.
- EMI/RFI
ADVANTAGE: As an
entirely optical signal, LightClock output neither
produces nor is vulnerable to EMI and RFI, unlike
electronic clocks and their signal transmissions.
- ECONOMICAL:
LightClocks are semiconductor devices
designed for mass production.
- VERSATILE PHYSICAL
INTERFACES: LightClocks can interface with
MPUs in a variety of customer-preferred formats including
flipchip, fiberoptic, or via other made-to-order methods.
For
related information see Intellectual Property |
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