From f2ce24d0696768cd805c1de58c5c4d54fa4751a4 Mon Sep 17 00:00:00 2001
From: Jean-Baptiste Bayle <j2b.bayle@gmail.com>
Date: Wed, 15 Sep 2021 14:18:18 +0200
Subject: [PATCH] Simplify TTL signs
---
lisainstrument/instrument.py | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/lisainstrument/instrument.py b/lisainstrument/instrument.py
index 76da946..2b08817 100644
--- a/lisainstrument/instrument.py
+++ b/lisainstrument/instrument.py
@@ -605,14 +605,14 @@ class Instrument:
logger.debug("Propagating carrier fluctuations to distant MOSAs")
carrier_fluctuations = \
self.local_carrier_fluctuations \
- - (self.central_freq + self.local_carrier_offsets) * self.distant_ttls / c
+ + (self.central_freq + self.local_carrier_offsets) * self.distant_ttls / c
propagated_carrier_fluctuations = \
(1 - self.d_pprs) * carrier_fluctuations.distant() \
.transformed(lambda mosa, x: self.interpolate(x, -self.pprs[mosa]))
self.distant_carrier_fluctuations = \
propagated_carrier_fluctuations \
+ self.central_freq * self.gws \
- - (self.central_freq + self.local_carrier_offsets) * self.local_ttls / c
+ + (self.central_freq + self.local_carrier_offsets) * self.local_ttls / c
logger.debug("Propagating upper sideband offsets to distant MOSAs")
self.distant_usb_offsets = \
@@ -623,14 +623,14 @@ class Instrument:
logger.debug("Propagating upper sideband fluctuations to distant MOSAs")
usb_fluctuations = \
self.local_usb_fluctuations \
- - (self.central_freq + self.local_usb_offsets) * self.distant_ttls / c
+ + (self.central_freq + self.local_usb_offsets) * self.distant_ttls / c
propagated_usb_fluctuations = \
(1 - self.d_pprs) * usb_fluctuations.distant() \
.transformed(lambda mosa, x: self.interpolate(x, -self.pprs[mosa]))
self.distant_usb_fluctuations = \
propagated_usb_fluctuations \
+ self.central_freq * self.gws \
- - (self.central_freq + self.local_usb_offsets) * self.local_ttls / c
+ + (self.central_freq + self.local_usb_offsets) * self.local_ttls / c
logger.debug("Propagating timer deviations to distant MOSAs")
self.distant_timer_deviations = \
@@ -1177,13 +1177,13 @@ class Instrument:
logger.debug("Computing local tilt-to-length couplings")
self.local_ttls = \
- - self.ttl_coeffs_local_phis * self.mosa_total_jitter_phis \
- - self.ttl_coeffs_local_etas * self.mosa_total_jitter_etas
+ self.ttl_coeffs_local_phis * self.mosa_total_jitter_phis \
+ + self.ttl_coeffs_local_etas * self.mosa_total_jitter_etas
logger.debug("Computing unpropagated distant tilt-to-length couplings")
self.distant_ttls = \
- - self.ttl_coeffs_distant_phis * self.mosa_total_jitter_phis \
- - self.ttl_coeffs_distant_etas * self.mosa_total_jitter_etas
+ self.ttl_coeffs_distant_phis * self.mosa_total_jitter_phis \
+ + self.ttl_coeffs_distant_etas * self.mosa_total_jitter_etas
def lock_on_cavity(self, mosa):
"""Compute carrier and upper sideband offsets and fluctuations for laser locked on cavity.
--
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