Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 9299 |
| Fachzeitschrift | Scientific reports |
| Jahrgang | 7 |
| Ausgabenummer | 1 |
| Frühes Online-Datum | 24 Aug. 2017 |
| Publikationsstatus | Veröffentlicht - 1 Dez. 2017 |
| Extern publiziert | Ja |
Abstract
We propose a new method to extend the path length tunability of rotary delay-lines. This method was shown to achieve a duty cycle of >80% and repetition rates of over 40 kHz. The new method relies on a new multi-segmented micro-machined mirror and serial injection of a single reflection onto separate segments of this mirror. The tunability is provided by the relative positioning of each reflective point on the mirror segments. There are two distinct modes of operation: synchronous and asynchronous. By simply manipulating the spatial position of the returning paths over the respective mirror segments, we can switch between increasing the repetition rate (asynchronous mode) or the total delay path (synchronous mode). We experimentally demonstrated up to 8 m/s scans with repetition rates of up to 42.7 kHz. Furthermore, we present numerical simulations of 18 reflection points to illustrate possibility of achieving a scan speed of up to 80 m/s. Through intermediate combinations of synchronous and asynchronous operation modes with 4 or more passes, we also show that the system can simultaneously increase both repetition rate and scan depth.
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in: Scientific reports, Jahrgang 7, Nr. 1, 9299, 01.12.2017.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Compact flexible multi-pass rotary delay line using spinning micro-machined mirrors
AU - Fleddermann, Roland
AU - Lee, Woei Ming
AU - Huang, Keshu
AU - Campbell, Geoff T.
AU - Lam, Ping Koy
AU - Chow, Jong H.
PY - 2017/12/1
Y1 - 2017/12/1
N2 - We propose a new method to extend the path length tunability of rotary delay-lines. This method was shown to achieve a duty cycle of >80% and repetition rates of over 40 kHz. The new method relies on a new multi-segmented micro-machined mirror and serial injection of a single reflection onto separate segments of this mirror. The tunability is provided by the relative positioning of each reflective point on the mirror segments. There are two distinct modes of operation: synchronous and asynchronous. By simply manipulating the spatial position of the returning paths over the respective mirror segments, we can switch between increasing the repetition rate (asynchronous mode) or the total delay path (synchronous mode). We experimentally demonstrated up to 8 m/s scans with repetition rates of up to 42.7 kHz. Furthermore, we present numerical simulations of 18 reflection points to illustrate possibility of achieving a scan speed of up to 80 m/s. Through intermediate combinations of synchronous and asynchronous operation modes with 4 or more passes, we also show that the system can simultaneously increase both repetition rate and scan depth.
AB - We propose a new method to extend the path length tunability of rotary delay-lines. This method was shown to achieve a duty cycle of >80% and repetition rates of over 40 kHz. The new method relies on a new multi-segmented micro-machined mirror and serial injection of a single reflection onto separate segments of this mirror. The tunability is provided by the relative positioning of each reflective point on the mirror segments. There are two distinct modes of operation: synchronous and asynchronous. By simply manipulating the spatial position of the returning paths over the respective mirror segments, we can switch between increasing the repetition rate (asynchronous mode) or the total delay path (synchronous mode). We experimentally demonstrated up to 8 m/s scans with repetition rates of up to 42.7 kHz. Furthermore, we present numerical simulations of 18 reflection points to illustrate possibility of achieving a scan speed of up to 80 m/s. Through intermediate combinations of synchronous and asynchronous operation modes with 4 or more passes, we also show that the system can simultaneously increase both repetition rate and scan depth.
UR - http://www.scopus.com/inward/record.url?scp=85028047768&partnerID=8YFLogxK
U2 - 10.1038/s41598-017-09576-5
DO - 10.1038/s41598-017-09576-5
M3 - Article
C2 - 28839180
AN - SCOPUS:85028047768
VL - 7
JO - Scientific reports
JF - Scientific reports
SN - 2045-2322
IS - 1
M1 - 9299
ER -