diff --git a/examples/laser/analysis_laser_vacuum.py b/examples/laser/analysis_laser_vacuum.py
index 465867ec6a..0f307419e1 100755
--- a/examples/laser/analysis_laser_vacuum.py
+++ b/examples/laser/analysis_laser_vacuum.py
@@ -40,9 +40,8 @@
 A0 = np.zeros(len(ts1.iterations))
 Z = np.zeros(len(ts1.iterations))
 for iteration in ts1.iterations:
-    F1, m1 = ts1.get_field(iteration=iteration, field='laser_real')
-    F2, m2 = ts1.get_field(iteration=iteration, field='laser_imag')
-    a_abs = np.abs(F1+1j*F2)
+    F, m1 = ts1.get_field(iteration=iteration, field='laserEnvelope')
+    a_abs = np.abs(F)
     W0[iteration] = 2.*np.sqrt(np.sum(a_abs**2*m1.x**2)/np.sum(a_abs**2))
     A0[iteration] = 2.*np.max(a_abs)
     Z[iteration] = ts1.current_t*scc.c
diff --git a/tests/checksum/benchmarks_json/laser_blowout_wake_explicit.1Rank.json b/tests/checksum/benchmarks_json/laser_blowout_wake_explicit.1Rank.json
index 4f99915788..18ad9de95d 100644
--- a/tests/checksum/benchmarks_json/laser_blowout_wake_explicit.1Rank.json
+++ b/tests/checksum/benchmarks_json/laser_blowout_wake_explicit.1Rank.json
@@ -15,8 +15,7 @@
     "jy": 11069.842800964,
     "jy_beam": 0.0,
     "jz_beam": 0.0,
-    "laser_imag": 0.00080302022219427,
-    "laser_real": 60820.320200801,
+    "laserEnvelope": 60820.320200801,
     "rhomjz": 29849.622242832
   }
 }
diff --git a/tests/checksum/benchmarks_json/laser_blowout_wake_explicit.SI.1Rank.json b/tests/checksum/benchmarks_json/laser_blowout_wake_explicit.SI.1Rank.json
index e37b0cd832..e33f58838a 100644
--- a/tests/checksum/benchmarks_json/laser_blowout_wake_explicit.SI.1Rank.json
+++ b/tests/checksum/benchmarks_json/laser_blowout_wake_explicit.SI.1Rank.json
@@ -15,8 +15,7 @@
     "jy": 1.5015192828127e+17,
     "jy_beam": 0.0,
     "jz_beam": 0.0,
-    "laser_imag": 80.30189635727,
-    "laser_real": 60820.320200801,
+    "laserEnvelope": 60820.474227637,
     "rhomjz": 1350541029.8265
   }
 }
diff --git a/tests/checksum/benchmarks_json/production.SI.2Rank_lwfa.json b/tests/checksum/benchmarks_json/production.SI.2Rank_lwfa.json
index 80f31b841d..42bcd41cff 100644
--- a/tests/checksum/benchmarks_json/production.SI.2Rank_lwfa.json
+++ b/tests/checksum/benchmarks_json/production.SI.2Rank_lwfa.json
@@ -15,8 +15,7 @@
     "jy": 59255897.782443,
     "jy_beam": 0.0,
     "jz_beam": 0.0,
-    "laser_imag": 24.919215184694,
-    "laser_real": 173.25896257113,
+    "laserEnvelope": 175.43495692727,
     "rhomjz": 897371.58141288
   }
 }