التفاصيل البيبلوغرافية
| العنوان: |
Towards Scalable Electro-Optic Systems in Thin Film Lithium Niobate Integrated Photonics |
| المؤلفون: |
Puma, Eric |
| المساهمون: |
Loncar, Marko, Shankar, Raji, Li, Xin |
| سنة النشر: |
2022 |
| المجموعة: |
Harvard University: DASH - Digital Access to Scholarship at Harvard |
| مصطلحات موضوعية: |
Electro-Optics, Integrated Photonics, Lithium Niobate, Applied physics |
| الوصف: |
Thin-film lithium niobate integrated photonics is a compelling platform for highly integrated electro-optic systems. The platform features compact, high-bandwidth phase modulators which can operate at CMOS compatible voltages, together with low optical loss, enabling photonic systems with large numbers of cascaded modulating elements. For instance, thin-film lithium niobate is an excellent candidate for optical switch networks (photonic circuits composed of large arrays of voltage-controlled optical phase shifters), which are at the core of powerful emerging photonic technologies, including high-performance optical computers, optical quantum computers, and datacenter interconnects. Lithium niobate electro-optic modulators are celebrated for their high-frequency performance (f > 1 GHz), but historically have struggled with stability at the lowest frequencies (f 1 Hz). For example, lithium niobate modulators can suffer from electro-optic bias drift, where the phase of the optical carrier drifts under the application of a DC voltage. The mitigation of electro-optic bias drift in thin-film lithium niobate is a challenging problem with enormous technological importance. Bias-drift is undesirable for highly scaled switch networks, which rely on the simultaneous stable tuning of thousands of optical interferrometers. Thermo-optic tuners have been introduced as a possible workaround, but with a static energy consumption cost per modulator of order 10 milliwatts (a factor 10^6 larger than electro-optic biasing), a penalty that translates to kilowatts in highly scaled networks. In bulk LN modulators, electro-optic drift has been addressed. Decades of research have led to drift mitigation techniques which permit the stable operation of modulators with an electrical bias over long timescales. Drift-mitigation in lithium niobate modulators is a challenging problem in optical material engineering and device physics. There are many possible drift mechanisms, overlapping in frequency response, each sensitive to a huge set of ... |
| نوع الوثيقة: |
thesis |
| وصف الملف: |
application/pdf |
| اللغة: |
English |
| العلاقة: |
Puma, Eric. 2022. Towards Scalable Electro-Optic Systems in Thin Film Lithium Niobate Integrated Photonics. Doctoral dissertation, Harvard University Graduate School of Arts and Sciences.; https://nrs.harvard.edu/URN-3:HUL.INSTREPOS:37372128Test; orcid:0000-0002-5143-711X |
| الإتاحة: |
https://nrs.harvard.edu/URN-3:HUL.INSTREPOS:37372128Test |
| رقم الانضمام: |
edsbas.7FB1A1B6 |
| قاعدة البيانات: |
BASE |
