Demonstration of digital pulse modulation of a grating-surface-emitting diode laser

1990 ◽  
Vol 26 (20) ◽  
pp. 1695
Author(s):  
N.W. Carlson ◽  
D.R. Patterson ◽  
P.J. Stabile ◽  
S.K. Liew ◽  
D.P. Bour ◽  
...  
Keyword(s):  
Diode Laser ◽  
Pulse Modulation ◽  
Digital Pulse

scholarly journals Dynamic and Static Calibration of Ultra-Low-Voltage, Digital-Based Operational Transconductance Amplifiers

Electronics ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 983 ◽  
Author(s):  
Pedro Toledo ◽  
Paolo Crovetti ◽  
Hamilton Klimach ◽  
Sergio Bampi
Keyword(s):  
Pulse Width Modulation ◽  
Low Voltage ◽  
Process Variations ◽  
Pulse Modulation ◽  
Silicon Area ◽  
Operational Transconductance Amplifiers ◽  
Static Calibration ◽  
Digital Pulse ◽  
Transconductance Amplifiers ◽  
The Impact

The calibration of the effects of process variations and device mismatch in Ultra Low Voltage (ULV) Digital-Based Operational Transconductance Amplifiers (DB-OTAs) is addressed in this paper. For this purpose, two dynamic calibration techniques, intended to dynamically vary the effective strength of critical gates by different modulation strategies, i.e., Digital Pulse Width Modulation (DPWM) and Dyadic Digital Pulse Modulation (DDPM), are explored and compared to classic static calibration. The effectiveness of the calibration approaches as a mean to recover acceptable performance in non-functional samples is verified by Monte-Carlo (MC) post-layout simulations performed on a 300 mV power supply, nW-power DB-OTA in 180 nm CMOS. Based on the same MC post-layout simulations, the impact of each calibration strategy on silicon area, power consumption, and OTA performance is discussed.

Design of H-Bridge Class-D Power Amplifiers for Digital Pulse Modulation Transmitters

2007 ◽  
Vol 55 (12) ◽  
pp. 2845-2855 ◽  
Author(s):  
Tsai-Pi Hung ◽  
Jeremy Rode ◽  
Lawrence E. Larson ◽  
Peter M. Asbeck
Keyword(s):  
Power Amplifiers ◽  
Pulse Modulation ◽  
Class D ◽  
Digital Pulse

Pulse modulation of gallium arsenide injection luminescent diode laser

1963 ◽  
Vol 51 (8) ◽  
pp. 1141-1142 ◽  
Author(s):  
J.P. Quine ◽  
K. Tomiyasu ◽  
C. Younger
Keyword(s):  
Gallium Arsenide ◽  
Diode Laser ◽  
Pulse Modulation
Sign in / Sign up

Export Citation Format

Share Document