The Phase Noise Characteristics of a Driven SAW Oscillator in the Threshold Vicinity for Injection Locking

1985 ◽  
Author(s):  
C.K. Campbell ◽  
P.J. Edmonson ◽  
P.M. Smith
Keyword(s):  
Phase Noise ◽  
Injection Locking ◽  
Noise Characteristics

scholarly journals An Inductorless Cascaded Phase-Locked Loop with Pulse Injection Locking Technique in 90 nm CMOS

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
Sang-yeop Lee ◽  
Hiroyuki Ito ◽  
Shuhei Amakawa ◽  
Noboru Ishihara ◽  
Kazuya Masu
Keyword(s):  
Phase Noise ◽  
High Frequency ◽  
Reference Signal ◽  
Phase Locked Loop ◽  
Cmos Technology ◽  
Injection Locking ◽  
The Other ◽  
Pulse Injection ◽  
Noise Characteristics ◽  
Reference Signals

An inductorless phase-locked loop with subharmonic pulse injection locking was realized (PLL area: 0.11 mm2) by adopting 90 nm Si CMOS technology. The proposed circuit is configured with two cascaded PLLs; one of them is a reference PLL that generates reference signals to the other one from low-frequency external reference signals. The other is a main PLL that generates high-frequency output signals. A high-frequency half-integral subharmonic locking technique was used to decrease the phase noise characteristics. For a 50 MHz input reference signal, without injection locking, the 1 MHz offset phase noise was −88 dBc/Hz at a PLL output frequency of 7.2 GHz (= 144 × 50 MHz); with injection locking, the noise was −101 dBc/Hz (spur level: −31 dBc; power consumption from a 1.0 V power supply: 25 mW).

scholarly journals Optimizing noise characteristics of mode-locked Yb-doped fiber laser using gain-induced RIN-transfer dynamics

2021 ◽  
Vol 9 ◽  
Author(s):  
Jiangshuoxue Han ◽  
Yang Liu ◽  
Zejiang Deng ◽  
Gehui Xie ◽  
Daping Luo ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Phase Noise ◽  
Transfer Functions ◽  
Dopant Concentration ◽  
Corner Frequency ◽  
Dispersion Management ◽  
Noise Characteristics ◽  
Laser Design ◽  
Parameter Dependent ◽  
Low Phase Noise

Abstract Gain-parameter-dependent transfer functions and phase-noise performances in a mode-locked Yb-doped fiber laser are measured in this study. It is discovered that the corner frequency in the amplitude and phase domains is determined by the absorption coefficient of the gain fiber, when the total absorption and other cavity parameters are fixed. This shows that an oscillator using gain fiber with higher dopant concentration accumulates more phase noise. Furthermore, we present net cavity dispersion-dependent transfer functions to verify the effect of dispersion management on the frequency response. We derive a guideline for optimizing mode-locked fiber laser design to achieve low phase noise and timing jitter.

Phase noise characteristics associated with low-frequency noise in submicron SOI MOSFET feedback oscillator for RF IC's

1999 ◽  
Vol 20 (1) ◽  
pp. 54-56 ◽  
Author(s):  
Ying-Che Tseng ◽  
W.M. Huang ◽  
E. Spears ◽  
D. Spooner ◽  
D. Ngo ◽  
...  
Keyword(s):  
Phase Noise ◽  
Low Frequency ◽  
Frequency Noise ◽  
Low Frequency Noise ◽  
Soi Mosfet ◽  
Noise Characteristics

Phase noise characteristics of a diode-pumped Nd:YAG laser in an unbalanced fiber-optic interferometer

2005 ◽  
Vol 44 (17) ◽  
pp. 3425 ◽  
Author(s):  
Zhou Meng ◽  
Yongming Hu ◽  
Shuidong Xiong ◽  
George Stewart ◽  
Gillian Whitenett ◽  
...  
Keyword(s):  
Phase Noise ◽  
Nd:Yag Laser ◽  
Fiber Optic ◽  
Noise Characteristics ◽  
Diode Pumped ◽  
Fiber Optic Interferometer ◽  
Diode Pumped Nd:Yag Laser
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