1. Jose Luis Sirvent Supervisor: Jonathan Emery Student Meeting 24 October 2011

2.  1. Status  2. Contact with companies  3. Simulations with zemax  4. Comparation

3.  A) Initial analysis and new approaches  B) Search of new components ◦ Collimators (4), Focusers (2) ◦ Circulators (5), cables, adaptators

4.  C) Initial Estimations of losses ◦ Study of possible limiting effects  Fresnel, Franhouer diffraction  Interferences  Fresnel reflection  Light Coupling efficiency  Estimate maximal separations ◦ Initial comparations in terms of power coupling LOSSES (Lc)TransmissionReflectionReflection (Collimator) Fresnell Disk-Vacuum0.31528399300.630567985dB Fresnell Fiber-Vacuum000dB Insertion Losses ST 0.351.42.1 dB Insertion Losses SMA 1*2222dB Optical Fiber1.75 dB Free Space28.3017246927.76908035.953030906dB Splitter 10/9002.2 dB Total Losses33.7670086933.619080312.43359889dB Pr0.04% 5.71%Ps

5.  A) Meeting with VaqTec ◦ Fibers for Vacuum ◦ Custom Lenses? ◦ Aligners XYZ and angular  B) Contact with AccuGlass ◦ Lenses & Collimators for Vacuum  Characteristics and models ◦ Fibers for Vacuum ◦ Feedthroughs

6.  Lensed fibers: ◦ http://www.laseoptics.comhttp://www.laseoptics.com ◦ http://www.corning.com http://www.corning.com   Vacuum Optical Components: ◦ http://www.plasus.de/index.php?page=system_optikkomponenten&lang=en http://www.plasus.de/index.php?page=system_optikkomponenten&lang=en   Others Factories: ◦ http://www.thorlabs.de http://www.thorlabs.de ◦ http://www.vacom.de/ http://www.vacom.de/ ◦ http://www.newport.com http://www.newport.com ◦ http://www.hellma-analytics.com http://www.hellma-analytics.com ◦ http://www.accuglassproducts.com http://www.accuglassproducts.com ◦ http://www.edmundoptics.com/ http://www.edmundoptics.com/ ◦ http://www.multimodefo.com http://www.multimodefo.com ◦ http://www.oceanoptics.com http://www.oceanoptics.com ◦ http://www.horiba.com http://www.horiba.com ◦ http://slwti.com/ http://slwti.com/ ◦ http://www.ofr.com http://www.ofr.com ◦ Http://www.agiltron.com Http://www.agiltron.com ◦ Http://www.fiberw.com Http://www.fiberw.com ◦ Http://www.dpmphotonics.com Http://www.dpmphotonics.com ◦ Http://www.acphotonics.com Http://www.acphotonics.com ◦ http://www.lasercomponents.com http://www.lasercomponents.com

7.  1. Intro: ◦ Optical simulation software package. ◦ Simulation under geometric and physic optics approach. ◦ Simulation of fiber coupling efficiency. ◦ Interferences and diffractions ◦ Lens modeling and validation.

8.  3.1 Initial simulations: ◦ 3.1.1 Transmission approach  Coupling efficiency: 0.15%  Distance limit: 1.5 mm  < Fresnell distance  Coupling 0.08%

9.  3.1 Initial simulations: ◦ 3.1.2 Reflection approach  Coupling efficency: 0.27%  Distance limit: 2mm  < Fresnell distance  Coupling 0.08%

10.  3.1 Initial simulations ◦ 3.2.3 Double Pattern approach  Wavelenth: 850nm & 1550nm  Disks Thickness: 1mm  Pattern used: 50um (Both positions On & Off)  Distance Between Disks: Variable  Screen distance: 1mm

11.  3.1 Initial simulations ◦ 3.2.3 Double Pattern approach:  In account 2 conditions  A) Transmission  B) Reflection  (Perfect reflection)

12.  3.1 Initial simulations ◦ 3.2.3 Double Pattern approach (Transmission)

13.  3.1 Initial simulations ◦ 3.2.3 Double Pattern approach (Reflection)

14.  3.1 Initial simulations ◦ 3.2.3 Double Pattern approach  Transmission 850nm (Absorption 92%)  Reflection 850nm (Reflexivity 60%)

15.  3.2.4. Focusing the beam ◦ Initial results with lenses. ◦ A) Usage of Double Convex lenses:  Edmund Optics has Possible Lenses which could fit in Accu-Glass Collimator.  Initial Simulations are showing errors in focusing distances. ◦ B) Usage of plano-convex lens combination:  Two collimators from Accu-Glass faced  Necessity of cutting one of them ◦ C) Using Defocusing defect:  Accu-Glass Collimator as a Focuser

16. LOSSES (Lc)TransmissionReflectionReflection (Collimator) Fresnell Disk-Vacuum0.31528399300.630567985dB Fresnell Fiber-Vacuum000dB Insertion Losses ST 0.351.42.1 dB Insertion Losses SMA 1*2222dB Optical Fiber1.75 dB Free Space28.3017246927.76908035.953030906dB Splitter 10/9002.2 dB Total Losses33.7670086933.619080312.43359889dB Pr0.04% 5.71%Ps Power BalanceTransmissionReflexionReflection (Collimator) Ps 555mW 6.9897000436.989700046.989700043dBm Pr 0.0021002410.002173010.285502631mW -26.77730864-26.62938-5.443898848dBm Free space loses comparing initial with Zemax (dB) TransmissionReflectionDouble pattern Initial28.327.75.9 Zemax28.227.95.68