Sökning: "Idler"
Visar resultat 1 - 5 av 17 avhandlingar innehållade ordet Idler.
1. Tooth Interior Fatigue Fracture&Robustness of Gears
Sammanfattning : The demands the automotive gear designer has to considerduring the gear design process have changed. To design a gearthat will not fail is still a challenging task, but now lownoise is also a main objective. Both customers and legalregulations demand noise reduction of gears. Moreover, thequality of the product is more in focus than ever before. LÄS MER
2. Tandem optical parametric oscillators using volume Bragg grating spectral control
Sammanfattning : This thesis describes research on near degenerate quasi phase-matched opticalparametric oscillators (OPO) where volume Bragg gratings (VBG) are used toproduce narrow oscillation bandwidth. These OPOs are then used to pump a secondOPO to generate mid-infrared radiation. The atmospheric transmission windows in the 3. LÄS MER
3. Phase Sensitive Amplifiers for Free-Space Optical Communications
Sammanfattning : The demand for high data rate free-space communications is increasing due to the planned future space exploration missions. In the next few years there is a need to increase the speed by 100 times according to NASA, and this necessitates that transmission systems operate at higher carrier frequencies. LÄS MER
4. Nanosecond tandem optical parametric oscillators for mid-infrared generation
Sammanfattning : This thesis discusses a new scheme for generating radiation in the mid infrared spectral region, especially the 3.5-5 µm range. The scheme uses established Nd3+-lasers at 1.06 µm and down conversion in nonlinear optical crystals. LÄS MER
5. Characterization of Phase-Sensitive and Phase-Insensitive Fiber Optical Parametric Amplifiers
Sammanfattning : The topic of this thesis is fiber optical parametric ampliers (FOPA). A unique feature of such ampliers is that they can operate in both phase-insensitive and phase-sensitive mode. The latter offers the potential of amplification without any added noise. LÄS MER